My friend Jane works as _______as his brother.
A. hard B. harder C. hardest
Don’t trouble trouble ________trouble troubles you.
| A．until | B．when |
| C．while | D．if |
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 |
— I didn’t hear you come in just now.
— That’s good. We tried ________ any noise.
| A．not make | B．not to make |
| C．to make | D．making |
________ 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 |