—Can we fix a time for the party? —We can’t have the party________none of us have any classes.
.The plant is dead . I ________ it more water.
The fact has worried many scientists ______ the earth is becoming warmer and warmer these years.
.He has ______ little education that he finds it impossible for him to equal ______ important a task.
China is playing an important role in the world. That’s Laura has come to study Chinese.
Astronauts in a spaceship have to _______weightless conditions _______are quite different from ______are on the earth.