1 . Located in the middle reach of Yangtze River, Wuhan is __________ (领先) in helping restore water quality on the Yangtze River.

2 . He is still h__________________ about whether to study abroad after he graduates from the high school or to study in a college at home.

3 . — Hi, Grace, how are you getting on with your preparation work for the trip?
— I _______ what to take with me.

A．will have decided

B．will decide

C．am deciding

D．had decided

4 . The population of Africa is ________ so rapidly as to cause concern of the whole world.

A．expanding

B．stretching

C．extending

D．spreading

5 . Bruce is __________(指责) his father of having broken his word.

6 . He is_______(吹口哨)happily when walking.

7 . 尽管克隆人类胚胎在很多国家还不合法，但一些科学家正在加紧研究，以制造出克隆的人类婴儿。
While cloning human embryos is not legal in many countries, some scientists are already ___________ research in order to produce a cloned human baby.

8 . He is always _________________(训斥) me about the way I dress. （根据汉语意思单词拼写）

9 . --- Hi, it's time we worked out a plan for the research project.
---Sorry, I'm not available right now. I _____ for the upcoming final exam.

A．am preparing

B．prepared

C．have prepared

D．will be preparing

10 . -With American tech companies cutting ties with China's Huaiwei, US___________ the global economic recovery now.
-I can’t agree more. I believe more damage is on the way.

A．is damaging

B．has damaged

C．damaged

D．had damaged