Betty will ring me up when she ________ in Beijing.
A.arrive | B.arrives | C.arrived | D.will arrive |
We don’t know ________ it next. Let’s go and ask Mr. Li.
A.what to do | B.to do what | C.whether to do | D.to do whether |
I’m glad to find that many trees ________ in our city last year.
A.plant | B.planted | C.were planted | D.are planted |
The more you smile, the ________ you will feel.
A.happy | B.happier | C.happily | D.more happily |
–Mr. Wang, can I finish my homework tomorrow? --Sorry, you ________.
A.can’t | B.don’t | C.needn’t | D.won’t |