.They arrived at a farmhouse, in front of which _____of no more than 10 years old.A,sat a boy B,a boy sat C,did a boy sit D,a boy did sit
The plan we _________ at yesterday’s meeting was that we ________ Mary ________ as the secretary.
Hellen set a good example ________ other mothers in demanding that children ________ enough time for sleep and play.
Soon after the PRC was set up, a new law was passed which _______ people’s freedom of speech, religion and demonstration.
— Does Martin regret wasting so much time playing online games?— ________. I suppose he can never give it up.
We all agree that _______ good knowledge of physics is a must in explaining such _______ natural phenomena.