题目内容

They _______ 600 trees before last Thursday.

A. had planted
B. have planted
C. planted
D. were planting

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We _______ about 2 thousand English words by the end of last term.

A. have learned
B. learned
C. had learned
D. were learning

My brother_ while he __ his bicycle .

A. fell, was riding
B. fell, were riding
C. had fallen, rode
D. falls, was riding

----Miss Lin_______ my deskmate with her lessons when I left school.----She is really a nice teacher.

A. helps
B. is helping
C. was helping
D. help

I will never forget the days _______ I worked with you.

A. that
B. where
C. which
D. when