题目内容

-Mario, your mobile phone is ringing.-Wait a minute. It’s dangerous for us ______it while crossing the street.

A. answering
B. to answer
C. answer
D. answered

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In last two years, we _______ twenty songs.

A. were learning
B. had learned
C. have learned

.Thanks___ your help. I have made progress.

A. for
B. of
C. with

-Many young people usually offer their seats to the old on the bus.-That’s good. The old should be ______.

A. looked for
B. listened to
C. depended on
D. cared for

.Someone_______ you know might really need the money.

A. which
B. what
C. that