if从句与why从句中的时态

If you____me，I shall be grateful to you.

A.helped B.will help C.are helping D.will be help

I wonder why they’re late They____the train.

A.can have missed B.could miss C.may have missed D.might miss

I'd be grateful if you would help me. 如果你愿意帮助我，我将会很感激。（摘自《英汉多功能词典》新编升级版p.833）

If you____me，I shall be grateful to you.

A.helped B.will help C.are helping D.will be help

【答】答案是 B.will help 。如：If you will [or you'll] wait a second , I'll tell her you're here. 假如你愿意等一下，我会告诉她你在这里。（摘自《英汉多功能词典》新编升级版p.1951）

黎反修 - 英语翻译（已退休）

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