Mike is always working hard and has made greater progress recently –______ he got the first prize

The scientist _____ Canada and he will give us a talk when he _____ back

I’m not going swimming tomorrow afternoon.— ________. I have to clean up my bedroom.

.— Can I use the telephone on the table,sir?—Under no circumstances____to use the telephone in the office for personal affairs.

_____ did you ________the summer vacation — It was terrible . I have too much homeworkto do .