The library needs __________, but it’ll have to wait until Sunday.
| A．cleaning | B．be cleaned | C．clean | D．being cleaned |
to take my English textbook, I had to borrow one from a schoolmate.
| A．Forget | B．To have forgotten | C．Forgotten | D．Having forgotten |
The meeting _________ next week is sure to be a great success.
| A．to hold | B．to be hold | C．to have held | D．being held |
While little Tony was climbing up a tree he fell off, his leg.
| A．damaging | B．hitting | C．hurting | D．striking |
in a university in the USA, Chinese students must have excellent speaking and writing abilities in English.
| A．Educate | B．Being educated | C．To be educated | D．Having educated |
Robert is said________ abroad, but I don’t know what country he studied in.
| A．to have studied | B．to study |
| C．to be studying | D．to be studied |
Tom took a taxi to the airport, only _____ his plane high up in the sky.
| A．finding | B．to find | C．being found | D．to have found |
The project, ______ by the Chinese engineers, was built in only two years.
| A．designing | B．designed |
| C．to be designed | D．being designed |
She was supposed ______ at home at the moment, but her mother found her in the park.
| A．to be reading | B．read | C．reading | D．to have read |
Having taken our seats, ______.
| A．the professor began the lecture |
| B．the lecture began in no time |
| C．we were attracted by the lecture immediately |
| D．the bell announced the beginning of the lecture |