You can't go out since you haven't finished your homework; ________, it is a stormy night.
It is important to know about the cultural differences that________cause problems.
When Premier Zhou Enlai was alive,he________work from morning until night every day,dealing with numerous affairs.
—May I tell this to my close friend?—No,you________.Never let anybody else know about it.
—Why didn’t Alex attend the party yesterday evening?—He________not have wanted to see me.
It has been announced recently that all the schools________not have the students attend school if the students have high temperatures.