(2019安徽改编)Our business won't improve u ________ we offer better services to our customers.
—My parents are crazy about Beijing Opera. How about your parents?
—________ my dad ________ my mom likes it. They prefer soft music.
A.Neither; nor B.Both; and C.Either; or D.Not only; but also
My father had so much work to do yesterday, and he didn't come back ________ I fell asleep.
A.until B.as C.unless D.when
—What do you think of your English teacher?
—I like him very much. He is ________ kind ________ hardworking.
A.either; or B.neither; nor C.not; or D.not only; but also
I would like to go shopping with you this afternoon, ________ I feel very terrible now.
A.so B.but C.and D.or
You'd better practice your spoken English well ________ you go to America for further education.
A.before B.after C.because D.unless