.Leonardo da Vince_____birds kept in cages in order to have the pleasure of setting them free.
| A．is said to be buying | B．is said to have bought |
| C．had said to buy | D．who said to have bought |
-- Tommy, your mum has been out without glasses!
-- Well, take it easy. she is back home for them.
| A．It is long before that | B．It won't be long since |
| C．It won't be long before | D．It will be long before |
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 |