题目内容
Once you ______ a promise , you must carry it out.
A have made B. had made
A
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You had better go at once, ____ you?
| A．shouldn’t | B．wouldn’t | C．hadn’t | D．couldn’t |
题目内容
Once you ______ a promise , you must carry it out.
A have made B. had made
You had better go at once, ____ you?
| A．shouldn’t | B．wouldn’t | C．hadn’t | D．couldn’t |