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.
小题1:To study / Studying
小题2:were removing
小题3:has been
小题4:haven’t bought
小题5:lived
小题6:have been
小题7:travels
小题8:to protect
小题1:动词不定式或动名词是动词的非谓语形式，可以用作句子的主语。
小题2:此题重点考查过去进行时的基本用法。
小题3:one of+名词的复数形式表示…其中之一，作主语时谓语动词要用单数形式。
小题4:yet是完成时的标志性词语。
小题5:in 2005是过去时间，故其谓语动词要用过去式。
小题6:since 2000表示自2000年以来是完成时的标志性短语，谓语动词用完成时。
小题7:动词不定式作目的状语。
小题8:略