试题详情

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

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

with the people there all the time. But you must know that the main way to study English is to make

Tommy,?do?you?know?if?Frank?___?to?the?theatre?with?us?this?Sunday?if?it?____?—Sorry,?I?have?no?ide

___today. [本题2分] (　　) might do it (　　) must do it (　　) had to do it (　　) must have to do it解答参考：