Although they feel tired, _________they still go on working.
| A．so, | B．but | C．/ | D．and |
Justin Bieber is ________ singer that young people are crazy for him.
| A．so a popular | B．such popular a |
| C．such a popular | D．popular so a |
________ the plane was missing for several days, ________ people didn’t give up.
| A．Although; but | B．Although; / |
| C．Although; however | D．Although; and |
— You look so tired.
— ________ I ran for two hours.
| A．But | B．For |
| C．So | D．Because |
Don’t trouble trouble ________trouble troubles you.
| A．until | B．when |
| C．while | D．if |
----I don’t like chicken ____beef?
----I don’t like chicken, ______ I like beef very much.
| A．and; but | B．or; but |
| C．and; and | D．or; or |
---You bought the car ten years ago? ---Yes. ______ it’s old, it still runs well.
| A．Because | B．Since |
| C．Although | D．But |
-- May I go to the concert with you?
-- I’m afraid not ____ you have a ticket, because I have only one.
| A．since | B．if |
| C．unless | D．though |
— Do you know everyone at the party?
— Almost, but I don’t know the one you talked with at the door.
| A．what | B．whose |
| C．who | D．which |
— Mom, I want some pocket money.
— Well, I won’t give it to you you wash your clothes.
| A．if | B．unless |
| C．while | D．though |