I like working with Mr. Dean, he is quite . —-Me too, I can easily know what he is thinking about.

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.

We have to give up this plan, for we are ____ funds.

I am looking after Tom today.He’s been in my house ______________ 8:00 this morning.

Xi’an was the last city ______ he visited when he came to China.