Can you imagine that a smart man like him ________ make such a stupid mistake?
| A．might | B．should | C．would | D．need |
She makes _______ effort to learn maths and she has made _______ great progress in it.
| A．an ; a | B．/ ; a | C．the ; / | D．an ; / |
Only in a few countries in the world _______ a reasonable standard of living.
| A．enjoyed people have | B．people have enjoyed |
| C．people can enjoy | D．can people enjoy |
They came together with the same ______ about the earth’s environment and the same dream of co-existing peacefully.
| A．attention | B．concern | C．tradition | D．business |
Hurry up! By the time we get to the church, the marriage service _____.
| A．will have started | B．has started |
| C．had started | D．must have started |
. Most of the young men looking for adventure in the rainforest had difficulty ___ to the terribly hot weather.
| A．adopting | B．sticking | C．adjusting | D．devoting |