A．increaseB．increasingC．had increasedD．is increasing
A. increase
B. increasing
C. had increased
D. is increasing
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According to the author, which is NOT the designer's chief concern when he designs a product？
A. Stress factors.
B. Man-hours.
C. Machine tolerance.
D. Customer-appeal.
During REM, ______.
A. your eyes move often
B. you dream
C. you are restless
D. both A and B
Which is______ , North America or South America？
A. biggest
B. the biggest
C. more bigger
D. bigger
Lynda and hundreds of young people like him______the post of typist.
A. approached
B. applied for
C. appealed to
D. approved of
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