--How many birds can you see in the trees?
--I can see ________ birds in the trees.
| A．hundred of |
| B．five hundreds |
| C．hundreds of |
| D．five hundreds of |
We must pay attention to _______ the teacher carefully in class.
| A．listen | B．listening to | C．hear | D．hearing |
We __________for a picnic if it ___________this Sunday.
| A．won’t go , will rain | B．won’t go , rains |
| C．didn’t go , is raining | D．don’t go , don’t rain |
The house ________ in1950.
| A．build | B．building | C．built | D．was built |
The book _______ my husband bought in Shenzhen yesterday was very interesting.
| A．who | B．where | C．when | D．which |
Four thousand kilometers _________ not a short distance.
| A．is | B．are | C．was | D．were |