Fill in the blanks with an appropriate modal auxiliary verb.
1You have been working all day. You ............... be tired.
Wrong!
Use "must" to make a logical conclusion from the evidence.
2What ............... we do now?
Wrong!
Use "shall" with "we" to ask for a suggestion or decision.
3Well, we ............... watch a movie.
Wrong!
Use "can" to suggest a possible action.
4How ............... we solve this problem?
Wrong!
Use "will" to ask about a future solution or decision.
5That ............... be a really nice restaurant. It is always full of people.
Wrong!
Use "must" to make a logical conclusion from the fact that the restaurant is full.
6She ............... be a good writer. Hardly anyone reads her books.
Wrong!
Use "can't" to say that a conclusion is impossible based on the evidence.
7I left my phone on this table and now it is gone. Somebody ............... have stolen it.
Wrong!
Use "must" with "have" and a past participle to make a past logical conclusion.
8Che was a famous revolutionary. You ............... have heard of him before.
Wrong!
Use "must" with "have heard" to say that you strongly expect something is true.
9I didn't hear the doorbell. I ............... have been asleep.
Wrong!
Use "must" with "have been" to make a past logical conclusion.
10She ............... be here soon. She has just left her home.
Wrong!
Use "can't" to say that something is impossible based on the evidence.
11This shirt is made of very fine fabric. It ............... be expensive.
Wrong!
Use "must" to make a logical conclusion from the quality of the fabric.
12There is the doorbell. Who ............... it be?
Wrong!
Use "can" in the question "Who can it be?" to ask about an unknown possibility.
Done.
Score: 0/12
Answers
- You have been working all day. You must be tired.
- What shall we do now?
- Well, we can watch a movie.
- How will we solve this problem?
- That must be a really nice restaurant. It is always full of people.
- She can’t be a good writer. Hardly anyone reads her books.
- I left my phone on this table and now it is gone. Somebody must have stolen it.
- Che was a famous revolutionary. You must have heard of him before.
- I didn’t hear the doorbell. I must have been asleep.
- She can’t be here soon. She has just left her home.
- This shirt is made of very fine fabric. It must be expensive.
- There is the doorbell. Who can it be?
