years ago.\rA. is built B. built C. were built D. was built\r27. The river smells terrible. People must dirty things into it.\rA. be stopped to throw B. be stopped from throwing C. stop to throw D. stop from throwing\r28. The teapot water.\rA. is filled with B. filled of C. fulling ofD. filled\r29. Old people must be looked after well and politely.\rA. speak to B. spoken C. speak D. spoken to\r30. Old people m u s t .\rA. look after well B. be looked well after C. looked well after D. be looked after well\r31. Newly-born babies in hospital.\rA. are taken good care B. are taken good care of C. take good care of D. take good care\r32. These walls stone.\rA. are made of B. made of u C. are made into D. made into
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