—-I’m very sorry. I haven’t brought you the pen you lent me yesterday.—-Forget it. You      not return it to me as I have got an extra one.

I _____ you somewhere before , but your name has escaped me _____ moment . 

I suggest that he _____, or else he could make things worse.

Tom’s mother often requires that he       more time in studying English every day．

The traffic is not busy now. We             arrive before dark.