He will help me____ ____ ____he is free.
一个雅典公民,他身上不可能发生的事情是( )
Tom Kate since two years ago, and they have had a child.
把下面的单词连成一句话。
某同学正在使用显微镜,在低倍镜视野中看到的图象如图,他想将物像移到视野正中央,应将玻片( )