1 . They said that they would drop the charges if we paid off the ______.

A．work

B．income

C．debt

D．economy

2 . Vitamins are a(n) ________part of our diet, without enough of which we would fall ill.

A．emotive

B．gentle

C．essential

D．complicated

3 . When the journey ended, Zac’s adventure received widespread media _________.

A．coverage

B．proficiency

C．negotiation

D．consultation

4 . ______ is discovered that tea aids digestion, so teahouse owners started offering snacks with their tea and yum cha was born.

A．As

B．What

C．It

D．After

5 . Mr. Green, ______ planned to visit China, arrived in Shanghai yesterday.

A．whom

B．that

C．which

D．who

6 . If you want to lose weight, walking to your office every day will ______.

A．crack a smile	B．do the trick
C．make an apology	D．leave an impression

7 . Some of these non-native fish escaped into other waterways. They can bully ecosystems, quickly ________.

A．switching off

B．taking over

C．bouncing around

D．turning up

8 . The hardest part of going back to college was feeling ________ about the time I spent away from my kids.

A．ridiculous

B．confident

C．guilty

D．excited

9 . Their common experience created a strong ________ between the two friends.

A．tale

B．circuit

C．mixture

D．bond

10 . By joining the club, not only have I ________ basic writing skills, but I also made some new friends with similar hobbies.

A．deserved

B．calculated

C．categorized

D．acquired