21[单选题,1.3分] She is a ______ person and does not want to live on charity.

16[单选题,1.3分] If the market is left ____________, there will sometimes be shortages or over-production.

7[单选题,1.3分] His _____ and unwillingness to learn from others prevent him from being an effective member of the team.

2[单选题,1.3分] Though she _____ and pleaded, he refused to go to the dance.

[单选题,1.3分] He just does ______ he pleases and never thinks about anyone else.

[单选题,1.3分] His income is double _____ it was five years ago.

[单选题,1.3分] I left my pen on the desk and now it’s gone; who ________ it?

[单选题,1.3分] feel sure I ________ her somewhere before.

单选题,9分] Scientists say it may be five or ten years _______ it is possible to test this medicine on human patients.

All people, whether they be rich or poor, strong or weak, privileged or deprived，are interdependent, and _______ the common task of seeking to achieve mankinds full potential

The manager or his assistant ______ planning to go

We can’t judge a person by his or her _______