Since you have missed such a good chance, don’t think about it any more. It’s ______ crying over spilt milk.
Xiao Hong worked harder last year. _______, she still didn’t get high grades.
Do you have any difficulty ________?
Sometimes ______English is quite different from ______English in many ways.
_____ of the students who took part in the military training is 1450.
_____ the early bus, Tom got up much earlier than usual that morning.