The medical reform in that country proved to be _____ failure, but as we know, success often comes after _____ failure.
A.a; the | B.a; / | C.a; a | D./; / |
31.— I'm wondering why the visitors chose to stay with the host family.
— _____real local life.
A.Experiencing | B.Experience | C.To experience | D.Having experienced |
30.How long do you think it will be _____ we can find a new water source?
A.after | B.before | C.when | D.Since |
29.High up in the mountains _____ a quiet small village, with only 20 households.
A.surrounds | B.locates | C.lies | D.Lays |
28.A heavy snow promises a good harvest, _____ is often the case.
A.where | B.as | C.that | D.What |
27.After his wife died, he kept himself _____ from other people and the outside world,
A.set off | B.cut off | C.put off | D.taken off |