Despite its little nutrition, the instant noodle is delicious and a hunger killer, so it__________since its birth.
| A．is developed | B．develops |
| C．had developed | D．has been developing |
My friend went home, ________me to conduct the band.
| A．to leave | B．leaving |
| C．left | D．having left |
When I first arrived ________San Francisco,I had a difficult time ________certain aspects of the American way of doing things.
| A．at;to understand | B．in;to understand |
| C．in;understanding | D．at;understanding |
After the long journey, the three of them went back home, _________.
| A．hungry and tiredly | B．hungrily and tiredly |
| C．hungry and tired | D．hungrily and tired |
— Are you going to the football game?
— No, the tickets are ______expensive for me.
| A．very much | B．too far |
| C．too much | D．much too |
You may use the room as you like ____ you clean it up afterwards.
| A．so far as | B．as if |
| C．so long as | D．even if |