The new term is coming. The students are busy _______ the classrooms.A. clean B.
题型：模拟题难度：来源：
| The new term is coming. The students are busy _______ the classrooms. |
A. clean
B. cleans
C. to clean
D. cleaning |
答案
举一反三
—We"d better ________ out for a walk instead of _______ TV. Don"t you think so?
—OK. Let"s go. |
A. to go; to watch
B. going; watching
C. going; watch
D. go; watching |
| After hearing the funny joke, my father can"t help _______. |
A. laugh
B. laughing
C. to laugh
D. laughs |
| I can"t stand _____ for you so long. |
A. to wait
B. waiting
C. waits
D. waited |
| _____ the environment is important for human beings. |
A. Take care of
B. Taking care of
C. Took care of
D. Take the care of |
—It"s too late now. Is Jane still at her desk?
—Yes, she always has trouble ______ her homework. |
A. finish
B. finishing
C. to finish
D. finished |
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