1 . People have been working together to record its migration and ________________ that there are enough plants for it to feed on.
人们一直在共同努力，记录它的迁徙并确保有足够的植物供它食用。

2 . To ______________ (谋生), some opened up shops and restaurants in Chinatown. (根据汉语提示完成句子)

3 . 这位教授的提议是设立基金会来募集资金。（propose)
The professor’s ________ is that a fund ________ ________ to ________ money.

4 . 携带手提行李的旅客可以直接到登机口办理登机手续。
Passengers with hand luggage can go straight to the departure gate to ________________ there.

5 . 人们正在采取措施以确保野生生物的自然保护区得到良好保护。
Measures________ to_______ the wildlife habitats are well protected.

6 . And even then they would not be able to ___________.(提供足够的光照，来消除对地面照明的需求). Space mirrors strikes me as a solution in search of a problem.