It"s important for teenagers time with friends.[ ]A. spending B. spen

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It"s important for teenagers    time with friends.[     ]
A. spending
B. spend
C. to spend
D. spent

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举一反三

Tom decided _____ his homework at school. [ ]
A. to do
B. do
C. doing
D. does

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There are many ways____learn a language. I think using it is the ___way. [     ]
A. to; best
B. of; good
C. to; good
D. of; best

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—I have trouble_____  my new computer.
—Don’t worry. I’ll show you how_____ it.[     ]
A. using; using
B. to use; to use
C. using; to use
D. to use; using

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He is expecting me _________tomorrow. [     ]
A. to coming
B. come
C. coming
D. to come

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He often tells the children _______ when they play water sports.[      ]
A. be careful
B. to be careful with
C. to be careful
D. not be careless

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