The professor explained this theory so clearly that this phenomenon was easy enough ________.
| A．for us to work out | B．working out |
| C．for working out | D．to working out |
---Do you enjoy your stay in here?
----Yes. A beautiful autumn day ___________ the wet summer we have had.
| A．became aware of | B．took advantage of | C．accounted for | D．compensated for |
George ___ the good chance to present his proposal to the director, and at last, it was adopted.
| A．realized | B．seized | C．delivered | D．released |
The government have realized the use the returnees make ______ the experience and skills ________while living abroad.
| A．of, gained | B．of, gain | C．for, gained | D．up, gain |
Food aid______ is the key to______ the problem _______ now.
| A．only, solve, discussed | B．alone, solving, being discussed |
| C．merely, solving, being discussed | D．alone, solve, being discussed |
Hunger is _____ number one global health risk, so ______WFP has organized a lot of programmes, which targets people most at ________risk.
| A．the, the, / | B．a, the, / | C．the, / , / | D．a, a, a |