1.He died on 15 January,_____ happened to be his birthday.
A.as B.when C.which D.that
选C
非限定性定语从句,指代1月15
2.Parents should prevent children from playing games_____ too much
of their spare time.
A.occupied B.occupying C.being occupied D.to occupy
选B.等于that occupies,指玩游戏占的时间太多
3.--How do you think about the new manager's future?
--With a lot of difficult problems_____ ,she will have a hard time.
A.settled B.settling C.to settle D.being settled
选C.settle与problem是动宾关系.
4.The bear was caught _____.
A.live B.lively C.livingly D.alive
选D.alive作副词,caught alive为活捉.