单项选择题
A．comes B．begins C．appears D．shines
It is difficult ______ a world record and even more dif...
单项选择题It is difficult ______ a world record and even more difficult to ______ it.
The computer of the airports have helped people greatly...
单项选择题The computer of the airports have helped people greatly. ______, more people travel by plane in Chin
The doctor ______ my forehead and said, "Your forehead ...
单项选择题The doctor ______ my forehead and said, "Your forehead ______ hot."
