The students insisted ________ in the morning.
A. on exercise
B. on exercises
C. on exercised
D. on exercising
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It ______ them five hours to ________ the art work.
A. takes, finish
B. take, finishes
C. takes, finished
D. take, finish
— I called you yesterday evening, but nobody answered. — Oh, _________ at that time.
A. I’m cooking
B. I cooked
C. I cook
D. I was cooking
Susan and Lily _______ tomatoes and other vegetables on the farm this time yesterday.
A. pick
B. are picking
C. will pick
D. were picking
My grandma ________ dinner when I got home yesterday.
A. cooks
B. will cook
C. is cooking
D. was cooking