Some people are worrying about the possibility ________ mobile phones could be responsible for a range of illnesses, from rashes(皮疹) to brain tumors．
| A．that | B．why | C．how | D．whether |
He is very popular among his students as he always tries to make them __________ in his lectures.
| A．interested |
| B．interesting |
| C．interest |
| D．to interest |
My advisor encouraged __________ a summer course to improve my writing skills.
| A．for me taking |
| B．me taking |
| C．for me to take |
| D．me to take |
The policeman asked __________ with the old woman.
| A．what the matter was |
| B．what was the matter |
| C．what matter was |
| D．what was the wrong |
He speaks English well indeed, but of course not __________ a native speaker.
| A．as fluent as |
| B．more fluent than |
| C．so fluently as |
| D．much fluently than |
All visitors to this village __________ with kindness.
| A．treat |
| B．are treated |
| C．are treating |
| D．had been treated |