It is astonishing what you can do with chocolate if you have enough of it. Give full play to your and have a try!

Up to now , some less well-off people __________ into the public rental house in Chongqing

This question is too difficult， so __________ of them can work it out.

Mom, I have too many after-school classes. Some are really unnecessary.—I get it. I will . See, I am an understanding mom.

In the past few years, research has suggested that Vitamin D may increase the level of serotonin（血清素）, one of the key nurotransmitters influencing our mood, and ________it helps to relieve mood disorders.