Modals of deduction（B2）— 带答案的英语练习

Must, might, could and can't for logical certainty, possibility and impossibility about present and past situations

正确答案已标出。添加到我的练习后会打开编辑器，可以修改题目、在屏幕上练习或加入课程。

1
选择题
The lights are off and the car isn't outside. They be out.
mustcan'tshouldneedn't'Must' expresses strong certainty based on evidence.
2
选择题
He's not answering his phone. He be in a meeting.
mightmustcan'tshould'Might' expresses a possibility, not a certainty.
3
选择题
She knows every street in the city. She have lived here a long time.
mustcan'tmustn'tshouldn't'Must have' + past participle expresses certainty about a past situation.
4
选择题
He got a perfect score without studying at all. That be true!
can'tmustmightcould'Can't' expresses that something is logically impossible.
5
填空
You've been travelling all day. You be exhausted.
答案: must'Must' + infinitive expresses a strong logical conclusion about the present.
6
填空
There's a light on in the office. Someone still be working.
答案: mustWe use 'must' when evidence strongly suggests something is true.
7
填空
I'm not sure where he is — he have missed the train.
答案: might同样正确: may, could'Might/may/could' + have + past participle expresses a possible explanation about the past.
8
填空
She said she'd never been to Paris, but that be right — I saw a photo of her at the Eiffel Tower.
答案: can't'Can't' + infinitive expresses something that is logically impossible.
9
填空
He have forgotten about the meeting — he never misses one usually.
答案: must'Must have' + past participle is used for a confident guess about the past.
10
判断对错
This sentence is correct: 'She must have been tired after the long flight.'
答案: 正确'Must have' + past participle correctly expresses certainty about a past situation.
11
判断对错
This sentence is correct: 'He mustn't be at home — all the lights are off.'
答案: 错误A negative deduction uses 'can't be', not 'mustn't be': 'He can't be at home.'
12
讨论题
Look around the room you're in now. What can you deduce about the person who was last there, using must/might/can't?
参考答案: The window is open, so someone must have wanted fresh air. There's a cup on the table, so they might have been drinking tea. The light is off, so they can't still be working.

Must, might, could and can't for logical certainty, possibility and impossibility about present and past situations

正确答案已标出。添加到我的练习后会打开编辑器，可以修改题目、在屏幕上练习或加入课程。

1
选择题
The lights are off and the car isn't outside. They be out.
mustcan'tshouldneedn't'Must' expresses strong certainty based on evidence.
2
选择题
He's not answering his phone. He be in a meeting.
mightmustcan'tshould'Might' expresses a possibility, not a certainty.
3
选择题
She knows every street in the city. She have lived here a long time.
mustcan'tmustn'tshouldn't'Must have' + past participle expresses certainty about a past situation.
4
选择题
He got a perfect score without studying at all. That be true!
can'tmustmightcould'Can't' expresses that something is logically impossible.
5
填空
You've been travelling all day. You be exhausted.
答案: must'Must' + infinitive expresses a strong logical conclusion about the present.
6
填空
There's a light on in the office. Someone still be working.
答案: mustWe use 'must' when evidence strongly suggests something is true.
7
填空
I'm not sure where he is — he have missed the train.
答案: might同样正确: may, could'Might/may/could' + have + past participle expresses a possible explanation about the past.
8
填空
She said she'd never been to Paris, but that be right — I saw a photo of her at the Eiffel Tower.
答案: can't'Can't' + infinitive expresses something that is logically impossible.
9
填空
He have forgotten about the meeting — he never misses one usually.
答案: must'Must have' + past participle is used for a confident guess about the past.
10
判断对错
This sentence is correct: 'She must have been tired after the long flight.'
答案: 正确'Must have' + past participle correctly expresses certainty about a past situation.
11
判断对错
This sentence is correct: 'He mustn't be at home — all the lights are off.'
答案: 错误A negative deduction uses 'can't be', not 'mustn't be': 'He can't be at home.'
12
讨论题
Look around the room you're in now. What can you deduce about the person who was last there, using must/might/can't?
参考答案: The window is open, so someone must have wanted fresh air. There's a cup on the table, so they might have been drinking tea. The light is off, so they can't still be working.