题目内容

15.The waters of the lake were so__________that it looked like glass.

A. silent
B. calm
C. still
D. quiet

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16.This railway__________Shanghai and Beijing.

A. joins
B. ties
C. concerns
D. connects

17.He was afraid of losing his way and made__________on the trees with a knife.

A. symbols
B. words
C. marks
D. signs

18.He__________to see what I meant, though I explained again and again.

A. wondered
B. was unwilling
C. fell
D. failed

19.Your plan__________quite all right, but is it practicable?

A. hears
B. sounds
C. feels
D. looks like