Our country is developing at an amazing speed，which is________makes me feel so proud.
| A．what | B．why | C．that | D．where |
Only after the woman had her own child ______how difficult it was to be a mother.
| A．she realized | B．had she realized | C．she had realized | D．did she realize |
We ________ the problem for a long time, but we didn’t reach any agreement.
| A．argued | B．explained | C．shared | D．communicated |
China sent up two manned spaceships and they were also great scientific _______ in the world.
| A．campaigns | B．surprises | C．achievements | D．discoveries |
She is one of the few girls who _____ in the kindergarten.
| A．is well paid | B．are well paid | C．is paying well | D．are paying well |
Every means _____ prevent the water from _____.
| A．are used to; polluting | B．will be used to; polluting |
| C．is used to; polluted | D．is used to; being polluted |