Scientists have created GM tomatoes which ______ fresh for 45 days, three times as long as normal tomatoes.
#101941
A
are stayed
B
have been stayed
C
stay
D
stayed
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Mary __________ a dress when she cut her finger.
#104297
A
made
B
is making
C
was making
D
makes
----- Hi, Tracy, you look tired. ------ I ________ the living room for three hours.
#101812
A
painted
B
had painted
C
was painting
D
have been painting