— pet cat is this?
—It must . Because I often hear it mew in our next-door room.
A．what; be my neighbor
B．who; belong to my neighbor
C．whose; be my neighbor’s
There may be a bad accident over there.
A．happening
B．to happen
C．happen
The dictionaries may for three weeks, but the books in this section can’t out of 
the reading room.
A．borrow; take
B．be borrowed; be taken
C．be kept; be taken
Most students like teachers understand them well.
A．those
B．who
C．/
We are here to the pubic best service.
A．provide; for
B．provide; with
C．provide; to
The old scientist told us we do in the future, we should try our best to do it well.
A．whatever
B．whenever
C．wherever
