--- Hello! Is Mr. John in the office?
--- Yes. But I’m sorry. He is busy _________ and can’t speak to you.
| A．at once | B．at present | C．at the end | D．at first |
In no place of China little about the economic development nowadays.
| A．the local government cares | B．does the local government care |
| C．doesn’t the local government care | D．cares the local government |
Tsinghua University, in 1911, is home to a great number of outstanding figures.
| A．found | B．founding | C．founded | D．to be founded |
In that school, English is compulsory for all students, but French and Russian are .
| A．special | B．regional | C．optional | D．original[ |
--- Tommy is planning to buy a car.
--- I know. By next month, he enough for a used one.
| A．saves | B．saved | C．will save | D．will have saved |
In communication, a smile is usually strong sign of a friendly and open attitude.
| A．the; / | B．a; an | C．a; / | D．the; an |