—Did you meet the professor at the airport?
—No，he ____ by the time I ____ there．
| A．had left；got | B．has left；reached |
| C．was leaving；got | D．left；had got |
Little Tom made a lot of mistakes ___________his carelessness.
| A．as | B．with | C．because | D．because of |
Of the three paper flowers, the red one is the_________.
| A．bad | B．worse | C．badly | D．worst |
When the pop star ________, his fans all got very excited.
| A．got | B．arrived | C．reached | D．lost |
If the phone_______wrong, you will get a new one for free or get all your money back.
| A．would go | B．goes | C．went | D．will go |
.---What else did the teacher say? ---He advised us______ in the wetlands.
| A．shout | B．not shout | C．don’t shout | D．not to shout |