Her grandmother has taught in this school _______ she became a school teacher.
| A．before | B．since | C．until | D．after |
The old man went near ________office.Unluckily，there was no name on________door.
| A．an；\ | B．the；the | C．an；the | D．the；a |
He changed so much that only when I looked closely________he was exactly my long lost friend.
| A．I realized | B．did I realize |
| C．I did realize | D．realized I |
－Personally，I believe I can do it well on my own.
－________Selfconfidence is the first secret of success.
| A．It's up to you. | B．Take it easy. |
| C．Let' s get going. | D．I'm with you on that. |
I've had a cookie，but you'd better give me________．I want to taste again.
| A．other | B．another |
| C．others | D．the other |
The video，Gangnam Style，is becoming the first video________more than one billion views.
| A．got | B．getting |
| C．to get | D．gets |