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1.His name is on the________ of my tongue, but I just can't remember it.

A) edge

B) point

C) tip

D) top

2.The ability to use a language can be________ only by the act of using the language.

A) acquired

B) required

C) performed

D) perfected

3.The explorer________ all the way to the source of the river by coat.

A) drove

B) travelled

C) rode

D) tracked

4.It is the responsibility of the police to________ law and order in the city.

A) retain

B) sustain

C) restrain

D) maintain

5.The situation very soon got________ in that country.

A) into hand

B) out of hand

C) off hand

D) at hand

6.The customs inspector was________ for smugglers.

A) on the watch

B) on the guard

C) on watch

D) at alert

7.Trains stop here in order to________ passengers.

A) get off

B) pull up

C) pick up

D) pull in

8.I________ several interesting facts about Mexico in that book.

A) came to

B) came over

C) came into

D) came across

9.It's a pity that he is blind________ his own faults.

A) at

B) with

C) by

D) to

10.Join did it________ his will. He did not really want to do it.

A) against

B) in

C) to

D) at

[答案]

1-5：CABDB

6-10：ACDDA