If you don’t want to misunderstand in the language communication, you’d better ____________ eye contact with one who is talking to you.

This kind of Xiaomi Phone is very small. It can be only_______ three inches.

So carelessly _____ that he almost killedhimself.

No matter ______ says no to us , we will return to our motherland

Scientists are trying their best to_______ ways to treat the terrible disease caused by Ebola(埃博拉）．