Grain output _____ greatly in the past few years.
| A．increased | B．increases |
| C．has increased | D．is increasing |
The director asked me to finish this task by Sunday. How can I to ?
| A．decide | B．happen |
| C．try | D．manage |
His grandpa was so poor at that time that he had to get up at dawn every day and walk to the factory in distance.
| A．/; / | B．/; the |
| C．a; the | D．the; the |
—Would you mind if I turn on the TV?
— .
| A．No, you can’t | B．Yes, please |
| C．No, go ahead | D．Yes, thanks |
We will be shown around the city: schools, museums, and some other places, _____ other visitors seldom go.
| A．what | B．which |
| C．when | D．where |
--- Is Bob still performing?
--- I’m afraid not. He is said _______ the stage already, as he has become an official.
| A．to have left | B．to leave |
| C．to have been left | D．be leaving |