Answer Key
Pre-test
You have already passed this section on 2015-02-20 at 15:58 scoring 100%.
Choose the best modal verbs.
- My car broke down in Death Valley last week. I [had to have] it towed more than a hundred miles to the nearest mechanic. - - - That [must have] cost you a fortune!
- You [can't] have seen her in Chicago! I know for a fact that she was right here in Dallas.
- I [must] be at the meeting by 9:00. I will probably [have to] take a taxi if I want to be on time.
- What are we [supposed] to do if such a thing happens?
- They don't want anyone to know - you [mustn't] tell anyone.
- Look! It's raining and Professor Smith is all wet. He [must have] forgotten his umbrella again!
- If you are over 18 in California, you [don't have to] take a driver's training course to get a driver's license. You can have a friend or a family member teach you instead. But remember, you [must] still get your permit before you start practicing.
- You [mustn't] forget to pay the rent tomorrow. The landlord is very strict about paying on time.
- It [may] have happened before. I don't know. We don't keep track of such incidents here.
- Look at these flowers – they're beautiful! But, there's no card. Who [could] have sent them? - - - It [must] have been David. He's the only one who would send you flowers.