问题
ee, I’m poor in physics and you arenot good at chemistry, and……— That’s _______ we should help each other
A:am working
B:had been working
C:have been working
D:was working
B:had been working
C:have been working
D:was working
正确答案是：
同类题型
How do you find Xiamen,Cathy?-It’s beautiful coastal city. I have ____ it for my next holiday.
Susan， would you please ____ this notice—With pleasure.
______ hungry I am, I never seem to be able to finish off this loaf of bread.
Yancheng City Ocean Bay held her first Cherry Blossom Festival ________ March 28,2015.