用括号内所给动词的适当形式填空，并将答案写在答题卡标有题号的横线上。
【小题1】Many great changes ____________ (take) place in China during the past 10 years.
【小题2】We should think about all we can do ____________ (prevent) animals and plants from becoming endangered.
【小题3】Today, to hold the Olympic Games ______________ (consider) as a rich prize for a country.
【小题4】The engineers ____________ (search) for some information on the Internet in the laboratory when Mr. White arrived.
【小题5】Jack and Susan ____________ (know) each other since they were children, so nobody was surprised to hear that they got married.
【小题6】He promised that he ___________ (not forget) to hand in his report before weekend.
【小题7】The patient jumped excitedly when he heard his illness could ______________ (cure).
【小题8】We should try out best to stop those factories ____________ (pollute) the rivers again.

用动词的适当形式填空
【小题1】____________(study) Zhalong helps us learn about protecting wildlife.
【小题2】Some of the students___________（remove）the snow when we arrived there.
【小题3】One of my classmates __________________ ( be) to the Great Wall twice.
【小题4】Father’s Day is coming, but I__________ (buy) a present for my father yet.
【小题5】Tom ____________ (live) in Nanjing for ten months in 2005.
【小题6】There__________ (be) many great changes in many areas in China since 2000.
【小题7】The teacher has told us many times that light _____________ (travel) faster than sound.
【小题8】We did everything we can____________ (protect) animals in danger.