You _______move to the next room. You may still stay here if you like.A. must B. needn’t C. can’t
It may take _________ years to make such robots .
When he grows up,he’s going to do .
I my resolutions and I make sure I will keep them.
There are different resolutions. Some of them _____ self-improvement.
The math problem is so hard. I really don’t know .