— I heard they went skating in the mountains last winter.
— It _____ true because there was little snow there.
| A．may not be | B．won’t be | C．couldn’t | D．mustn’t be |
_____ advice I give him, he always behaves in his own way. I simply can’t do anything with him.
| A．How | B．Whatever | C．However | D．No matter |
Tom should not be sent to____ the task, for a start he hasn’t had enough experience.
| A．look out | B．run out | C．find out | D．carry out |
He claimed _____my grandmother yesterday, but she passed away tens years ago.
| A．having met | B．to have met | C．meeting | D．to meet |
—Why didn’t Susan come to school?
—I don’t know. She____ ill.
| A．could be | B．may have been | C．might | D．must have been |
In front of the gate of the park ____ like an umbrella covering the entrance.
| A．an old pine tree stood | B．an old pine tree did stand |
| C．did an old pine tree stand | D．stood an old pine tree |