SinceWilliamhadbeenseriouslyillforseveralmonths,hisparentswereworriedabout________toreturntoschoolfull-time.
1956年我国在生产资料所有制的社会主义改造基本完成后，开始进入_______。
ComradeLi________beinBeijingbecauseIsawhimintownonlyafewminutesago.
Iwon't________thosechildrenmakinganoiseinmyhouse!
Sixtypercentoftelevisionviewerschosehimastheir_______actor.
