【推荐1】The workers tried ________ (they) best ________ (make) a new machine.

【推荐2】Everybody, please keep quiet. It doesn’t allow us ________（make）any noise in the reading room.

【推荐3】You’d better avoid ________ (make) such a mistake again in our daily life.

【推荐1】Lily is bad ________ singing Chinese songs, but her brother can sing well.

【推荐2】My grandma is very good at _______ (tell) stories.

【推荐3】Some of the students are good at ________ (演奏) the piano.

【推荐1】Are you good at _________ (tell) stories, Jim?

【推荐2】用括号内所给单词的适当形式填空。
1. We can solve a problem by __________（learn）to forget.
2. I'm looking forward to __________（watch）the football match.
3. Don't forget __________（turn）off the lights before you leave the room.
4. I'm sleepy. I prefer __________（sleep）at home to going out for a walk.
5. It takes me half an hour __________（play）the piano every day.

【推荐3】What a pity! We can’t go ________ (camp) because of the heavy rain.