The driver of the red car _____ when a black one came up very quickly.
A. was just starting
B. has just started
C. would just start out
D. is just starting out
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——I'm not finished with my dinner yet.——But our friends _____ for us.
A. will wait
B. wait
C. have waited
D. are waiting
I walked slowly through the market, where people ____ all kinds of fruits and vegetables. I studied the prices carefully and bough what I need.
A. sell
B. were selling
C. has sold
D. have sold
I ______ dinner when a quarrel broke out among my son and daughter.
A. preparing
B. am preparing
C. was preparing
D. prepared
In fact, more and more people ______ to live a greener, healthier and more environmentally friendly "green life".
A. chose
B. choose
C. are choosing
D. have chosen