1 . Despite the great trouble they had       the survey, they collected the data they had been looking for.

A．conducting

B．to conduct

C．conducted

D．been conducting

2 . 听轻音乐对于缓解人们的悲伤情绪很有帮助。(动名词作主语)(汉译英)

3 . Now for our emergency supplies, we would suggest always ________ ________ ________ enough water and food for three days. (hand)
对于我们的紧急物资，我们建议随时有足够的水和三天的食物。

4 . 他为这次面试做好了准备，因为他不能冒险失去这一良机。(动词-ing 形式作宾语) （汉译英）

5 . Experienced in ____________ to various animals, I’m sure to be the right person you’re looking for. (根据句意填空)

6 . ________ able to have access to digital payment is such a convenience in the modern age.

A．Having been

B．To be

C．Being

D．Be