The children were worried about their mother. They didn’t go to bed ___ their mother came back..
| A．when | B．while | C．until | D．after |
What can you see when there is a strong wind?
---I can see clouds______ quickly.
A. move B. moves C. moving
a book and two rulers on the desk.
A. There is B. Has C.There are
Chinese New Year is_____ the _____ day of the _____lunar month.
A.on…one…one
B. in…first…first
C. on…first…first
I’ve got _______ uniform. She’s got _________ umbrella.
A. an…an B. a…an C. a…a
Many people are waiting _____ the train ______ the underground station.
A. for…at B. with…at C. to…in