If you don’t turn up by 8 o’clock, we’ll go ______ you.

I hurried to the accident spot only to find two dogs happily enjoyed what was left ____the cake and meat.

 — When do we need to pay the balance?— ____  September 30.

—Why do you suggest we buy a new machine?—Because the old one has been damaged ______.

The teacher divided the whole class, which consisted ______ 40 students, into four groups.