1 . In recent years some Inuit people in Nunavut ________ (report) increases in bear sightings around human settlements（所给词的适当形式填空）

2 . Considering the seriousness of the problem, I strongly recommend ________(report) it to the head teacher. （所给词的适当形式填空）

3 . 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)

4 . 据报道3人在这起交通事故中受伤。
_____________ three people were injured in the traffic accident.

5 . You should report this accident to the police at once. This is our suggestion. （用不定式作表语改写下面句子）

7 . Tom is the only one of the witnesses who ___________ the whole accident.

A．has reported seeing	B．have reported to see
C．has reported to see	D．have reported seeing

9 . Already this year, 115 measles cases ___________ (report) in the USA, compared with 189 for all of last year.