Mary is tired of learning because she is_______ to do better than she, both at school and at home.

I have _________ homework to do and I’m _______ tired now.

How many people have died in the bomb explosion—They say they’ve had reports that more than ahundred people died but cannot ______ this.

Your sweater looks nice, is it made of wool—Yes, and it’s made ______ Shanghai.

It’s _____ hard problem for the twins that____ of them can work it out.