UC知道If you _____ your work ,you can help me with mine A finished B will finish Chave finished
来源：百度知道 编辑：UC知道 时间：2024/09/23 20:23:55
请高手给出详细理由
C
A这里表示将来如果完成的话，不能用过去时
Bif引导的条件状语从句用现在式表将来 B排除
现在完成时和一般现在时都可以在if引导的条件状语从句中表示将来发生的动作
if引导的条件状语，主句要用将来时，从句用一般现在时。
填finish 原形
If you asked your father,you _____ permission.
If you _____, no one will believe you.
if you _____(not tell)me what the matter is ,I _____(not undederstand)you.
(1)If yo want to be successful,you must work h__________every day.
If you really want yourself to be in good health,you must _____ always _____ so much.
——May I call you Jim? ——Certainly,if you _____.
14. If you live in a town, you _____ worry about parking.
If you want to book a round-trip ticket, you’ll have to pay _____ $ 30.
you might _____ your parents if you failed the exam again
yo=you吗？