The project has been held up by a sudden change in temperature for a week.—I’m afraid the terrible weather will________for some time.[ ]

依次填入下列横线处的词语，最恰当的一组是( )研究伊始，该团队选取了华北、西北地区生产的几十种马铃薯进行分析________，从营养成分、________、硬度等方面多次试验，________确定了适合加工马铃薯面条的两个品种。随后，又从诸多面粉种类中试验选取了______的小麦粉加以调试。

Mr Black is the professor_________I have the greatest respect.

I used to text messages, but now I am used to Wechat.

Why do we have to ______Sue’s selfish behavior？We should teach her to care for others.