The microphone enabled them to keep in touch, in other words, it made it _____ for them to contact each other.
| A．likely | B．capable | C．possible | D．probable |
．The plant is dead . I ________ it more water.
| A．will give | B．would have given | C．must give | D．should have given |
The fact has worried many scientists ______ the earth is becoming warmer and warmer these years.
| A．what | B．which | C．that | D．though |
．He has ______ little education that he finds it impossible for him to equal ______ important a task.
| A．so ;such | B．such ; so | C．so ;so | D．such ; such |
China is playing an important role in the world. That’s Laura has come to study Chinese.
| A．because | B．why | C．how | D．that |
Astronauts in a spaceship have to _______weightless conditions _______are quite different from ______are on the earth.
| A．do with; which; those | B．deal with; that; that |
| C．solve; that; what | D．face; which; these |