The number of foreign students attending Chinese universities __________ rising steadily since 1990.
I don't mind __________ the Internet as long as it is not too late.
Please tell me the way you thought of __________ the garden.
That is the only way we can imagine __________ the overuse of water in students' bathrooms.
I have a lot of readings __________ be-fore the end of this term.
We were astonished __________ the temple still in its original condition.