21. The old paper mill has been ________ to make way for a new shopping centre.
' a) ]2 _- S9 ^5 j8 uA) held down B) kept down C) cut down D) turn down; J* {7 a+ c3 }: ?) @, C# M5 V0 y
22. It may be necessary to stop ________ in the learning process and go back to the difficult points in the lessons.% f+ s' _$ o8 N# q% E9 w- |) I
A) at a distance B) at intervals C) at case D) at length3 j$ L! N$ O7 ^/ ]. r
23. You can hire a bicycle in many places. Usually you‘ll have to pay a ________.' P0 H' j& x* a/ z7 y
A) deposit B) deal C) fare D) fond
1 q( I- D T) v V) O24. My grandfather had always taken a ________ interest in my work, and I had an equal admiration for the stories of his time.4 p5 O+ o! j% [! K0 V0 X
A) splendid B) weighty C) vague D) keen
4 J( Y, ~' T& V7 ^4 d25. ________ quantities of water are being used nowadays with the rapid development of industry and agriculture.
: x) }& Q6 O' ?A) Excessive B) Extensive C) Extreme D) Exclusive
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