______ some teenagers don’t realize is ________ difficult life can be after they get addicted to drugs.
| A.What; how | B.That; how | C.That; what | D.What; what a |
I don't know who invented ________ iphone,but I think it is ________ useful invention.
| A.the;a | B.the;the | C.an;the | D.an;a |
—Which of the twin brothers is easier to get on with?
—________ younger one.He is ________ most humorous man.
| A.A;a | B.A;the | C.The;a | D.The;/ |
It is said that ________ wool produced in Australia is of ________ high quality.
| A./;/ | B.the;/ | C.the;a | D.the;the |
— How did you do in your essay?
—I got ________ okay grade,but Mr.Jones gave Sarah top marks.She's ________ teacher's pet,you know.
| A./;a | B.an;/ | C./;the | D.an;a |
My friend's birthday is coming soon.I would like to go to ________ store,or some places close by to buy him ________ present.
| A.the;the | B.a;the | C./;a | D.the;a |