The red bike _______be Hu’s. She has a blue bike.

Mrs. Black doesn’t know if her American friend_____ to Heilongjiang. If he_____ here, she will meet him at the airport.[ ]

What did your father do last weekend?— He ___________ at home with us all the time.

. ________ is no doubt that your world is becoming smaller, due to the technological advance made by the computer.

I’m clever_____a monkey. [ ]