He __________computer games when his parents left home. So he didn’t know where they were.
| A．is playing | B．plays |
| C．played | D．was playing |
-I believe we’ve met before.
-No, I’ve never been here before.
| A．it isn’t the same | B．it’s true |
| C．I don’t think so | D．I believe so |
-Where’s the old blue bag?
- I’m not sure, but it ______ be thrown away. It be somewhere in the house. I saw it yesterday.
| A．must ;must | B．must; can |
| C．can’t; must | D．can’t; can |
The mobile phone has influenced people’s life a lot since it________.
| A．invents | B．invented |
| C．is inventing | D．was invented |
The Greens arrived ______ New York ______ a Sunny Day.
A. in; in B. at; in C. in; on
Teenagers like to _______ photos of famous stars in their bedrooms.
| A．put in | B．put up | C．put away | D．put out |