——Who is knocking at the door?
——It ______ Mr. Black, because he_______Washington.
| A．can't be;has gone to | B．may be;has been to |
| C．must’t be;has gone to | D．may be;went |
As students, we should work hard and do ________ best to realize our dreams.
| A．us | B．our | C．ours | D．ourselves |
Some naughty boys like to play ________ trick on their classmates on April Fool’s Day.
| A．a | B．an | C．the | D．/ |
Which of the following underlined parts is different in pronunciation from the others?
| A．Please focus your attention on your papers, boys and girls. |
| B．She likes to show off her new clothes in front of her friends. |
| C．I think she should improve her learning methods. |
| D．The boy picked a hole in his new sweater. |
She is so helpful that she is always ready to help people in trouble. Which of the following is correctfor the underlined word in the sentence?
| A．/'tr37bl/ | B．/'tra7bl/ | C．/'trKbl/ | D．/'trbl/ |
The words that we should pay attention to ___________ on the blackboard.
| A．being written | B．are written | C．is writing | D．writing |