Could you give us some advice about this competition?—If you want to win first prize,your design for the museum must be________.[ ]

I wanted to borrow a pen_____ Jake, but he didn’t lend it____ me.

earlier, wecouldn’t be waiting here in a queue

Peter, do you know if David _________us in the fashion show this Sunday—I’m sure if he _________his homework, he will join us.

你与对方初次见面并听到对方说Niceto meet you 时， 你应该说____________