It’s more than half a century _____ my grandfather joined the Party and became a servant to the people.

    A. when B. that

    C. sinceD. while

. The famous basketballer, _______ tried to make a comeback, attracted a lot of attention.

    A. where                     B. when      C. which                     D. who

It’s said that he’s looking for a new job, one ______ he can get more money to support his family.

    A. when               B. where      C. that               D. which

 On Sundays there were a lot of children playing in the park, _______ parents were seated together joking.

    A. their               B. whose      C. which               D. that

David is such a good boy _______ all the teachers like.

    A. that                   B. who      C. as                     D. whom

—How can I use this washing machine?

—Well, just refer to the _______.

A. explanations      B. expressions

C. introductions     D. directions

She is not a competent driver and can’t cope with driving in _______.

A. heavy traffic      　    B. heavy traffics

C. crowded traffic  D. crowded traffics

They lost their way in the forest, and _______ made matters worse was that night began to fall.

    A. it                  B. which

    C. that                D. what

The thief tried to break away from the policeman who ______ him, but failed.

    A. has held                   B. had held

    C. was holding                D. would hold

. You _____ your turn so you’ll have to wait.

    A. will miss               B. have missed

    C. are missing             D. had missed