You must have missed the first train yesterday, ________ you?
A.weren’t | B.didn’t | C.mustn’t | D.haven’t |
The person we talked about ____ our school last week.
A.visiting | B.will visit | C.visited | D.has visited |
Before he went abroad,he spent as much time as he _____ English.
A.could learning | B.learned | C.to learn | D.could learn |
______ is it _____ has made Peter _____ he is today?
A.What; that; that | B.That; that; what | C.What; what; that | D.What; that; what |
If _____ carefully, the experiment will be successful.
A.do | B.does | C.done | D.doing |
It would be a good idea to use a plastic bottle, ___cut off, as a container to grow young plants in.
A.of which the top | B.the top is | C.top of which | D.with its top |