____ it was late, the students were still studying in the classroom.
| A．Although | B．But | C．As long as | D．Because of |
--Does Lisa have a red schoolbag?
--No, but she has ____ orange one.
| A．a | B．an | C．the | D．/ |
This book is bad. It is ______interesting ______exciting.
A. either…or B. both…and C. neither…nor
-- Could you tell me something about the boy who helped you just now?
-- Sorry, I know nothing about him. We are______.
A. friends B. strangers C. classmates
There are so many kinds of computers in the shop. I really don't know ______ to choose.
A. what B. which C. where
- Excuse me. May I use your eraser, please?
-- Sure. ______
A. Watch out!
B. Well done!
C. Go ahead.