你不小心踩到别人时,你应该对他(她)说: A.It’s great. B.I don’t know. C.I’m sorry.
----Can he work out the maths problem? ----I think _____ hard for him to work it out.
_____speak more English in class?
He tries_____ English well, so he practises _______English every day.
I’m 1.70 metres. Yao Ming is 2.27 metres. I am ______ Yao Ming.
Did Mary enjoy ______ at the party?