______some people are motivated by a need for success, others are motivated by a fear of failure.

1. ______some people are motivated by a need for success, others are motivated by a fear of failure.

A. Because B. If C. Unless D. While

【考点】

引导让步状语从句的连词; 让步状语从句;

【答案】

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1. For a senior high student, ____ good use you have made of your time to study, there is still room for improvement.

A. whatever B. however C. though D. whether

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2. ____the Internet is of great help, I don't think it's. a good idea to spend too much time on it.

A. While B. If C. Because D. As

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3. _____ small, the company has about 1000 buyers in over 30 countries.

A. As B. If C. Although D. Once

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