1 . They are always ________ (comment) on what I’m wearing. (所给词的适当形式填空)

2 . Because of climate change, the ice that polar bears depend on for survival ____ (disappear) slowly. (所给词的适当形式填空)

3 . The remarkable development of this city, which is consciously designed to protect the past while _______ (step) into the modern world, means there is always something new to discover here, and I could be photographing Beijing for the next 50 years. (所给词的适当形式填空)

4 . In the future, care for the environment will become very important as earth’s natural resources are ________. (用run的相关短语填空)

5 . The workers ________(construct) the bridge damaged by the flood, and the bridge ________ construction connects the road with the town. (所给词的适当形式填空)

6 . The World Health Organization warns that millions of people ________________ (suffer) from indoor air pollution at the present time, which results from the use of dangerous fuels and cook­stoves at home. （所给词的适当形式填空）

7 . Professor Smith, as well as his assistants ________ (do) an experiment in the lab now.

8 . They ______ (have) a wonderful time at the moment. (所给词的适当形式填空)

9 . Look! The monkey ________ (climb) the tree. (所给词的适当形式填空)

10 . Those responsible NGOs ________ (take) various measures to deal with the increasingly serious pollution. (所给词的适当形式填空)