1 . Many scientists subscribe to the view________ it is human activity that has caused global warming. (用适当的词填空)

2 . Though ________(defeat), he still felt happy. (所给词的适当形式填空)

3 . Dick enjoys painting but he knows the fact ________ he doesn’t have what it takes to be a professional. (用适当的词填空)

4 . The gold medal will be awarded to _________ wins the first place in the bicycle race. (用适当的词填空)

5 . The parents didn’t tolerate their kids’ rudeness at the party, nor ________(do) they allow themselves to be disobeyed. （所给词的适当形式填空）

6 . —Do you know if he ________ to play basketball with us?
—I think he will come if he ________ free tomorrow.

A．comes; is

B．comes; will come

C．will come; is

D．will come; will come

7 . —I prefer shutting myself in and listening to music all day on Sundays.
—That’s ______ I don’t agree. You should have a more active life.

A．where

B．how

C．when

D．what

8 . Since last month, George, along with some of his former classmates, ________(desire) to have a 20-year gathering during this summer holiday. (所给词的适当形式填空)

9 . Henry ________ (fix) his car when he heard the screams. (所给词的适当形式填空)

10 . As is known, the air quality in cities________ (be) becoming worse and worse these days.