Be careful of the dog! It’s . Keep away from it.
| A．gentle | B．aggressive | C．lovely | D．interesting |
Who is the man over there? Is it Mr. Wu?
— It ________ him, but I am not quite sure.
| A．may be | B．maybe | C．is | D．must be |
I didn’t see Tom last night. Where was he?
--- He______ an interesting book at home.
| A．reads | B．is reading | C．was reading | D．will reading |
Nobody can live________ fresh air and clean water.
| A．with | B．in | C．by | D．without |
My brother is honest boy, he never tells a lie.
| A．a | B．an | C．the | D．/ |
—Hello, may I speak to Sandy, please?
—_________.
| A．Who are you? | B．What's your name? |
| C．I'm Sandy. | D．This is y speaking. |