E-mails can _______ a lot of phone calls because almost everybody prefers things that are written and not just said on the phone.
| A．exchange |
| B．represent |
| C．reduce |
| D．replace |
Many early Europeans, ________ the earth to be flat, feared that Columbus would fall off the edge of the earth.
| A．believing | B．having believed | C．believed | D．to believe |
With so many orphans ________，the charity organization calls for more donations.
| A．to be looked after | B．being looked after | C．to look after | D．looked after |
I don’t think it is teachers who ________ for giving students too much pressure.
| A．are to blame | B．are going to blame | C．are to be blamed | D．should blame |
The shy girl felt ________ and uncomfortable when she couldn’t answer her teacher’s questions.
| A．amazed | B．awkward | C．curious | D．amused |
John is the only one of the students in our class that never ________a mistake even when it is pointed out to him.
| A．admit making | B．admits making | C．admit to make | D．admits to make |