Don’t let a good chance go ...............
A.on
B.off
C.by
D.over

Stop now! You've done ..............work for one day
A.too many
B.plenty
C.quite more
D.quite enough

He seldom goes fishing........................?
A.doesn’t he
B.is he
C.does he
D.isn't he

Not one of the students ...............the answer to that difficult problem
A.know
B.knows
C.is knowing
D.has known

We will wait until he shows up
A.appears
B.answers
C.speaks
D.finishes

______(2)
A.between
B.of
C.among
D.Both A and B

______(4)
A.his
B.the
C.Both A and B
D.them

______(5)
A.course
B.term
C.final
D.examination

Which of the following can best replace “in flux” ?
A.breaking
B.producing
C.changing
D.increasing

He never has enough money.
A.He's always short of money.
B.He's always lack of money he's always broke.
C.He's always enough money.
D.Both A and B