If you do it _____ the first time, you won"t have to do it again.

单选题

If you do it _____ the first time, you wont have to do it again.

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单选题

If you refuse to do it,you must be ready to take the（ ）.

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单选题

---Do you enjoy your present job?---_____,l just do it for a living.

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单选题

Tighten the bolts manually if you cannot do it with the specified tool.

答案解析

单选题

— Would you mind moving your bike? — _____ I’ll do it right away.

答案解析