–What did you find in the zoo?–The animals _______ in tiny cages and they could hardly move at all.
#50459
A
keep
B
kept
C
were kept
D
were keeping
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We should wear special boots __________ us floating away into the space .
#48510
A
to prevent
B
preventing
C
prevent
D
prevented
---Mary dances best in our school.---I agree. I’ll never forget ______ her dance for the first time.
#48560
A
seeing
B
to see
C
see
D
seen