Humans must first of all eat, drink, have houses and clothing, _____ they can pursue politics, science, art and religion.

We’ve offered her the job, but I don’t know ________ she’ll accept it.[ ]

There are several reasons _____ the smog days in many parts of China.

The tour pal lost his way in the mountain; ________made things worse was that it began to rain.

Have you found the information you can use for the report— Not yet. I’ll search some online.