我国社会主义改造全面推开是从 _______年开始的。

She got a job as an assistant stage manager at the Cambridge Arts Festival Theatre, thinkingthat it might ________ to a career as a playwright ( 剧作家 ).

设数列收敛，则（）

Matter is the name ________ (give) to everything which has weight and occupies space.

新民主主义社会在经济和政治上都居于领导地位的是 _________。