We've done our（）to make the process as simple as possible.

单项选择题The noise was so faint that you had to（）your ears to hear it.

A.stir
B.strengthen
C.strain
D.stride

单项选择题The manufacturers refused to take all（）for damage caused by misuse.

A.duty
B.responsibility
C.obligation
D.share

单项选择题If you（）bright sunlight（）dry wood with a glass, it will start burning.

A.expose；to
B.concentrate；on
C.aim；at
D.focus；on

单项选择题When he was a young boy, a serious disease deprived him of the（）of hearing.

A.organ
B.possession
C.conduct
D.faculty

单项选择题Stamping on any country's national flag is an（）to its people.

A.inflation
B.ingredient
C.insult
D.invasion

单项选择题I am afraid that you have to alter your（）views in light of the tragic news that has just arrived.

A.indifferent
B.distressing
C.optimistic
D.pessimistic

单项选择题If you（）a magnet-needle, its two ends can point North and South, and so it can be used to determine directions.

A.overtake
B.fix
C.highlight
D.suspend

单项选择题Shaking hands when people meet each other for the first time is practiced as a（）way of greeting.

A.conventional
B.conservative
C.constant
D.convenient

单项选择题Richard's news report covering the conference was so（）that nothing had been omitted.

A.comprehensive
B.integrated
C.redundant
D.productive

单项选择题After three hours of heated debate, the（）bill was passed by a narrow majority .

A.virtual
B.universal
C.controversial
D.substantial