— I think it’s beneficial to build a library near our dormitory building.—  　　　. It will be a great convenience.

---I think the company may not offer you a good pay.---_______, I won’t take the job.

I just keep working hard as I have done, and ________ it will pay off. It has done so far and so I just have to do the same.

 Nature reserves are very important for preserving many animals and plants, which would _______ run the risk of becoming extinct.

You need to take your job________if you want to keep it.