He wasn't interested in politics until he was old enough to ________.
A. choose
B. vote
C. elect
D. register
查看答案
She ________(sail) the boat without any help
The (salesman) ________in that shop have been fired last week.
She (salt) ________the beef so that it couldn't be rotten yesterday.
The beef is (sandwich) ________ between two silces of bread.
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