Come _______ me, and I will show youaround.

The visiting professor gave us some advice,________ of great help to our English learning.

I don’t know he tomorrow. I think if he , I’ll go to see him.

I often have the case ______ I can’t recognize my friends’ voice on the phone[ ]

What do you think of your nephew—He__________ be very naughty but at thesame time you poor.