问题

, I think, and all the problems could be settled

A:If you make more efforts
B:Making more efforts
C:A bit more effort
D:To have made more efforts

正确答案是：

同类题型

What shall we do tomorrow morning—Would you like to climb the hill if it _______

I have a birthday party this evening. Are you free —Yes, I am.

Only after _____ her accusation _____ her case. [ ]

After ____ seemed about a quarter, Li Lin managed to work out the difficult math problem, which pleased our teacher.

After Steven sent some e-mails, he surfing the Internet.