Sam spends two hours _______ his homework every day.
| A．to do | B．doing |
| C．do | D．does |
Little Kate went to the concert ____it rained heavily yesterday.
| A．even though | B．if | C．until | D．Unless |
The boy studies very hard. He always pay attention to___ to his teachers in class.
| A．listen | B．listens | C．listening | D．to listen |
My grandfather ______ us stories when I was young.
| A．was used to tell | B．is used to telling |
| C．used to tell | D．used to telling |
—English is _________ difficult subject. I even want to drop it.
—You’d better not. I’ll help you _______it.
| A．a quite; in | B．quite a; with |
| C．a very; for | D．very a; on |
Did you find _________ very interesting to play basketball?
| A．this | B．it’s | C．that | D．It |