| A．will | B．can | C．must | D．\ |
The visiting minister expressed his satisfaction with the talks, ______ that he had enjoyed his stay here.
| A．having added | B．to add |
| C．adding | D．added |
You should try not to get ________ in the trouble between them.
| A．lost | B．involved |
| C．absorbed | D．trapped |
Many countries are in great need of natural gas, wind and other forms of ________.
| A．power | B．source | C．energy | D．material |
Good heavens! There you are! We were all ________ about your safety. We were expecting you to come back much earlier all through the night.
| A．curious | B．concerned |
| C．upset | D．interested |
________you eat the correct foods ________ be able to keep fit and stay healthy.
| A．Only if; will you | B．Only if; you will |
| C．Unless; will you | D．Unless; you will |