（1）We have invited Nancy White in order to ______
A．make our school clean
B．make our school life more interesting
C．make the students more interested in English
（2）The speech is on ______．
A．air pollution
B．English study
C．American history
（3）The speech will start ______．
A．at two o'clock this Friday afternoon
B．at three o'clock next Friday afternoon
C．at two o'clock this Monday afternoon
（4）The school hall is on the ______floor of the teaching building．
A．first
B．second
C．third