You'd better not phone the manager between 7 and 8 tomorrow evening, because he __________ an important meeting then.
The number of foreign students attending Chinese universities ________ rising steadily since1990.
-Why does the Lake smell terrible? -Because large quantities of water .
Daniel's family their holiday in Huangshan this time next week.
With the help of high technology, more and more new substances ______ in the past years.
I got caught in the rain and my suit _______.