21. The old paper mill has been ________ to make way for a new shopping centre.+ [1 a( L9 f, q/ P
A) held down B) kept down C) cut down D) turn down ; Z3 g1 M. g4 g- I22. It may be necessary to stop ________ in the learning process and go back to the difficult points in the lessons.) B" Q0 ~1 [1 [2 l. \9 t
A) at a distance B) at intervals C) at case D) at length, q; D* r4 y1 A$ i" M
23. You can hire a bicycle in many places. Usually you‘ll have to pay a ________.+ U5 B# v# V k" }1 h1 Z6 Y: o
A) deposit B) deal C) fare D) fond 3 l) r. f. w$ B, ]: f! o0 n24. My grandfather had always taken a ________ interest in my work, and I had an equal admiration for the stories of his time.1 V! }7 l1 I3 v' M! _+ B4 R
A) splendid B) weighty C) vague D) keen # s" n: f0 w5 a4 y25. ________ quantities of water are being used nowadays with the rapid development of industry and agriculture. ! M) @- K- ^: e2 N1 D% KA) Excessive B) Extensive C) Extreme D) Exclusive7 {. U( L( _9 j7 _3 ~. k