---Spacecraft “Discovery” has failed in the course of launch.
----_______? They have been preparing for the test.
A.How come | B.When | C.How | D.Why not |
The young man who we talked a lot about yesterday is unfit for the work, _____?
A.didn’t we | B.did we | C.is he | D.isn’t he |
---- You have never seen an American film, have you?
---- ________. How I wish I had such a chance!
A.Yes, I have | B.Yes, I haven’t | C.No, I have | D.No, I haven’t |
________ if you want to do something, or you won’t be able to do it well.
A.To try your best | B.Trying you best | C.Try your best | D.Unless you try your best |
--- Father, I’m going out for a play.
---- _________ be long!
A.Don’t | B.It won’t | C.Won’t | D.You didn’t |
_______ your mind and you will find the way.
A.Using | B.Use | C.If you use | D.To use |