Great changes have taken place in that school. It is no longer it was 20 years ago,_____ it was so poorly equipped.
Some students have trouble _____grammar while others have difficulty______ new words.
--What did you say?--So you _____to me.
"Why don’t you stay here over the weekend? " She said._______
Watching TV is____ a kind of relaxation, and it also ____our knowledge.
We study several subjects, __________ Chinese, maths, English and so on.