单项选择题
According to the time table, the train for Beijing ____...
单项选择题According to the time table, the train for Beijing ____ at 9:10 P.m.from Monday to Friday.
The new drug will not be put on the market ____ it has ...
单项选择题The new drug will not be put on the market ____ it has proved safe on humans.
Our company’s visitors decided to stay in our city for ...
单项选择题Our company’s visitors decided to stay in our city for ____ two days as they wanted to have a look around.
