________, I saw and old friend of mine, whom I haven’t seen for years.
| A．Turning around | B．Turning back | C．Turning away | D．Turning up |
The new generation of computers, with artificial intelligence, _______and perfected now.
| A．are being developed | B．have developed |
| C．developed | D．will develop |
In order to decrease the death rate, the rescue team are in saving more lives.
| A．succeeded | B．achieved | C．finished | D．employed |
I would appreciate if you could look after my pet while I am away.
| A．you | B．this | C．it | D．myself |
When for his views about his teaching job, Philip said he found it very interesting and rewarding.
| A．asking | B．asked | C．having asked | D．to be asked |
Do you know he could have dealt with, if he had not passed the test?
| A．how | B．what | C．where | D．why |