At first the man refused to answer the questions ____ by the police, but later he had to admit ____the car.
| A．asking; to have stolen |
| B．asked; to have stolen |
| C．asked; having stolen |
| D．asking; having stolen |
Rainforests _______ and burned at such a speed that they will disappear from the earth in the near future.
| A．cut | B．are cut | C．have been cut | D．are being cut |
Smile is recognized as a/an _________ language, which can be understood by people all over the world.
| A．artificial | B．technological | C．universal | D．analytical |
The conference has been held to discuss the effects of tourism _______ the wildlife in the area.
| A．on | B．in | C．at | D．of |
Effective measures should be taken to ______ the rare species _______ being over-killed by human beings.
| A．keep; against | B．prevent; from |
| C．stop; against | D．protect; from |
A good article should not only be rich in the use of language, but also it ought to be ________ organized.
| A．personally | B．faithfully | C．unexpectedly | D．logically |