1 . I think he is likely ________(visit) us if he knows where we live. （所给词的适当形式填空）

2 . New research found that middle-aged women who were physically fit could be nearly 90 percent less likely ________(develop) dementia (失智症) in later life. （所给词的适当形式填空）

3 . Snow suspected that the water pump was ________(blame). (所给词的适当形式填空)

4 . To avoid knee pain, you can run on soft surfaces to ________ (strength) your leg muscles. (所给词的适当形式填空)

5 . The exercises are designed to ________(strength) your muscles. （所给词的适当形式填空）

6 . It is not clear why dogs seem to be equipped with the ability ________ (recognise) different facial expressions in humans. （所给词的适当形式填空）

7 . I passed by John quickly without greeting him, pretending not ________ (see) him. (所给词的适当形式填空)

8 . You don’t need to bother _________(come) all the way here.

9 . You’ll have the opportunity ________ (ask) any question at last. (所给词的适当形式填空)

10 . There is a lot of homework ________ (do) tonight because of the coming exam. （所给词的适当形式填空）