Choose the best answer to the following sentences.

问题描述:

Choose the best answer to the following sentences.
1.I was worried as to whether you were going to be a mental _______ for life or not.
A.cripple B.disabled C.inability D.incapability
2.Petitions(请愿书) bearing nearly a half million _______ went to the White House.
A.signs B.markings C.signatures D.markers
3.She smiled with an upward _______ of her head.
A.tilt B.inclination C.tendency D.slope
4.The leaflet explains how the system will apply _______ you.
A.for B.against C.to D.with
5.You will have to drive faster ---- they’re gaining _______ us.
A.on B.off C.to D.against
6.Workers are being _______ off at the rate of 100 a week.
A.slacked B.dismissed C.laid D.removed
7.We are ready to defend the sacred _______ of our motherland.
A.boundary B.limitation C.territory D.area
8.When I am told to be wanted _______ the phone,I would grow tense.
A.upon B.in C.at D.on
9.These national parks are very important for preserving many animals,who would _______ run the risk of becoming extinct.
A.instead B.therefore C.nevertheless D.otherwise
10.Human beings are superior to animals _______ they can use language as a tool to communicate.
A.for which B.for that C.in which D.in that

1-B,
2-C
3-A
4-C
5-A
6-C
7-A
8-D
9-D
10-A