------You are leaving for Beijing Please send me a postcard _________ you are there.
------No problem.
| A．if | B．while | C．although | D．because |
–The weather is very cold these days. –.
A. So do I B. So is itC. So it is
There is no _____ that phones play an important role in the modern life.
A.question B. doubt C. problem
There ______ more new buildings in my hometown in two years .
A. are B. will haveC. will be
The little boy is healthy, _____ he is happy, too.
A.and B. but C.or
The meeting for two hours.
A. has begun B. has been onC. began