s a difficult and stressfuljob, but one ______ you can really help people

He is, how shall I ________， not fat but rather well built.

The woman sold the eggs ________ seven dollars and they were sold________half price

The world ______ is made up of matter.

With the opening of the Qinghai-Tibet Railway, more and more people have chosen to travel Tibet, because it hasa(n) _____natural landscape. [ ]