_______ is our belief that improvements in health care will lead to a stronger, more prosperous economy.
| A．As | B．That | C．This | D．It |
With inspiration from other food cultures，American food culture can take a________for the better.
| A．share | B．chance | C．turn | D．lead |
Carbon dioxide, which makes a________between us and the sun, prevents heat from getting out of the atmosphere easily, so the earth is becoming warmer.
| A．difference | B．comparison |
| C．connection | D．barrier |
Poetry written from the________of the urban youth tends to reveal their anxiety over a lack of sense of belonging.
| A．perspective | B．priority |
| C．participation | D．privilege |
Meals in Spain are quite different from ________ they have in China.
| A．which | B．what | C．that | D．whom |
________ seems to be a strong competition in China for senior high students to enter universities does exist in other countries as well.
| A．It | B．Which | C．What | D．That |