用括号内所给动词的正确形式填空(共6小题；每小题1分。满分6分)

小题1:We           (go)  fishing if it is fine next Sunday.

小题2:Work harder, and you              (get) better grades in your lessons.

小题3:Too much homework _________ (lead) to students’ poor health.

小题4:______ (catch) the early bus, he got up early this morning.

小题5:Not only they but Jim _________ (watch) the birds in Yancheng Nature Reserve now.

小题6:He was busy________(write) a report on animals in danger between 7 and 9 o’clock yesterday evening.

在阶级社会中，社会经济关系主要表现为阶级关系，因此，道德也必然带有阶级属性。