The manager __________ the workers how to improve the program since 9 am.
| A．has told | B．is telling |
| C．has been telling | D．will have told |
________ my previous teachers, the senior high teachers are more knowledgeable and have more sense of humor.
| A．Comparing to | B．To compare with |
| C．Comparing with | D．Compared with |
Here is a ticket for the exhibition. Whom would you rather _____ with you, Jack or Bob?
| A．go | B．have go | C．had go | D．going |
The person changed his clothes and wore dark glasses to avoid _______.
| A．being recognized | B．having been recognized |
| C．having recognized | D．recognizing |
Tired of the president’s _______ speech, the people _____ at the back began to play with their mobile phone.
| A．boring, seating | B．bored, seated |
| C．boring, sitting | D．bored, having been seated |
The World Wide Web is ____ computer network that allows ____ computer users to access information for millions of websites via the Internet.
| A．a, the, | B．a, / | C．the, the | D．the, / |