.I soon found that the work I was doing had already been done by someone else - ________, I was wasting my time.
---- Sorry, Liz. I think I was a bit rude to you. ---- _______, but don’t do it again.
The biggest cities in Canada only have about six million people while _______ in China are much larger.
____ with what the students had done, the teacher praised them highly.
you can borrow my caryou promise not to drive too fast.
Not until____ did Humphrey begin working.