I won’t attend the meeting _______ him， _______ I have too much to do these days.— I see.

We couldn’t wait _______ a good rest afterthe exam.

It _____ long before we _____ the result of the experiments. [ ]

Why do you look so upset —I broke up with my girlfriend.If only I _______ more about her.

_____ heavy snow! How can we go to work today —_____ it is snowing heavily, let’s walk instead of driving.