题目内容
He ______ to swim when he was five.
[ ]
A. can
B. could
C. can be able
D. was able
B. could
C. can be able
D. was able
D
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相关题目
He ________ to swim when he was five.
| A．can | B．could | C．can be able | D．was able |
He ________ to swim when he was five.
| A．can | B．could | C．can be able | D．was able |