1 . Seven babies _____________ (bear) by the time my shift finishes tonight! (所给词的适当形式填空)

2 . ________ (bite) by my dog made Linda refuse to play with me again. (用所给词的适当形式填空)

3 . The hospital ________ (build) now is expected to be completed in two years.(所给词的适当形式填空)

4 . Modern methods ______ tracking polar bear populations have been employed only since the mid-1980s,and are expensive ______ (perform) consistently over a large area. In recent years some Inuit people in Nunayut ______ (report) increases in bear sightings around human settlements, leading to a ______ (believe) that populations are (所给词的适当形式填空)

5 . The crowd cheered wildly at the sight of Liu Xiang, who was reported ___________ (break) the world record in the 110-meter hurdle race.(所给词的适当形式填空)

6 . Many new buildings ________ (build) in Tangshan since 1976. （所给词的适当形式填空）

7 . The two hotels are attractive _______(base)from which to explore southeast Tuscany. （所给词的适当形式填空）

8 . I don't think it is worthwhile _________（buy）things which are not needed. （所给词的适当形式填空）

9 . If I hadn’t seen it with my own eyes, I wouldn’t________(believe) it. (所给词的适当形式填空)

10 . I like getting up very early in summer. The air in the morning is so good_____________ (breathe). (所给词的适当形式填空)