6. Professor Liu _____all his students with his great knowledge of history.
A.impressed
B. excited
C. stirred
D. touched
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7. The shoes are correctly placed on the shelf _____ size and colour.
A. so as to
B. as to
C. so as for
D. as for
8. In a typhoon, winds _____ a speed greater than 120kms per hour.
A. assume
B. accomplish
C. attain
D. assemble
9. I don’t think the charge for overhaulingthe equipment is excessive in _____ to its size.
A. correspondence
B. equation
C. proportion
D. dimension
10. Burning waste ______ energy that can be used for electric power or heating.
A. supplies
B. accumulates
C.gathers
D. yields