"The final exam is coming. You'd better concentrate ___________ your study. " Mother informed me __________ it.
—I’m sorry I broke your mirror. —Oh,really?_________.
—How long did the meeting last this afternoon? —It was supper time _________ the meeting was over.
She _________ his number in the phone book to make sure that she had got it right.
The meeting will begin at ten.So you have to be there _________ 9:50.
—Mum,I think I’m _________ to get back to school. —Not really dear.You’d better stay at home for another day or two.