---Unless you _____ to pay the money back within six months. A.understand
B.undertake
C.underplay
D.underline
23.--- What time would you like me to _____ his evening for the concert?
--- I think 6:30 will be OK. A.pick you up
B.pick you out
C.pick you out B.We all know
D.pick you off
24. _____, the materials expand and contract with the increase and decrease of temperature. A.It is well known
C.It is well known that a lot of truth.
A.not more than B.less than
C.more than
D.no more than
D.As is well known
25.History is _____ a subject that not only let us know something in history; it also tells us
26.In the evening the car broke down _____ and the heavy rain added to the helplessness of
the girl driver on the country road.
A.unexpectedly A.scared; into A.that; what about my work.
A.careful A.turned up
B.anxious B.turned down
C.curious C.turned off
D.crazy D.turned out
30.Her parents had had a very anxious moment but everything _____ all right in the end. 31.I often think of those winter days when we spent time reading books together, ____ a cup
of hot chocolate at hand.
A.as
spend at the seaside.
A.that
B.when
C.as
D.while
33.It’s always difficult being in a foreign country, _____ if you don’t speak the language.
A.extremely B.naturally C.specially A.more than twice C.twice as many as
D.especially
34.Americans eat _____ vegetables per person today as they did in 1910.
B.as twice as many D.more than twice as many
B.through
C.with
D.by
32.--