The earth（地球） is our home, and we must _____ it clean.
| A．change | B．sweep | C．keep | D．stay |
—Sorry , I’m busy. I can’t go fishing with you.
—_______. I can ask Lily to go with me.
| A．No problem | B．You’re welcome |
| C．Of course | D．Never mind |
There are ______ students in this school.
| A．two hundreds | B．two hundreds of |
| C．hundreds of | D．hundred of |
—Do you enjoy _____ basketball?
—Yes, I do. It’s my favorite sport.
| A．play | B．playing | C．plays | D．to play |
Li Lei keeps ______ English every day.
| A．practicing speaking | B．to practice speak |
| C．practicing to speak | D．to practice speaking |
I wanted to be _____ actor when I was a child.
| A．a | B．an | C．the | D．/ |