问题

eptember 2008 , China’s key milestonein space travel_____when Zhai Zhigang conducted the first space walk.

A:reached
B:was reached
C:has reached
D:had been reached

正确答案是：

同类题型

Tom eagerly finished up wasleft of the chicken pie.

在下面一段文字的横线处填入词语，最恰当的一项是中国哲学家的语言如此不，而其中所含的暗示则几乎是的。富于暗示而不是，这是中国诗歌、绘画等各种艺术所追求的目标，它也同样成为中国哲学家表达思想时的风格。

I’vegot to go now. —Must you I youcould stay for dinner with us.

________ exciting sport it is to go bike riding!

Nowadays all passengers go through safety check before take a train.