members of a team perform better,the trainer first of all has to know their ______________ and weaknesses.

How about the book on the most famous musicians of the age?— Oh, Mozart’s story _________ well

Bill doesn’t like playing football，but he often watches football matches (比赛)_____ TV.

My uncle is used to forthe children in poor areas.

Our English teacher tells us that ______ grammar is agood way to learn English. –And our teacher says_____ also helpful to sing English songs.