Because I got up very late this morning,______ I was late for class.
A. but B./ C. so
—I don’t know _______ now.
—She is much better today.
| A．how is she | B．where is she | C．how she is | D．where she is |
_______ they are twin brothers, they don’t look like each other.
| A．Though | B．Since | C．However | D．When |
—Do you mind if I smoke here?
—_______ You can go to smoke in the next door.
| A．Yes, please. | B．Never mind. | C．You’d better not. | D．Of course not. |
Sandy didn’t tell her parents that she was going home because she wanted to give them a _______.
| A．gift | B．call | C．surprise | D．note |
This is _______ difficult problem that few students can work it out.
| A．so | B．so a | C．such | D．such a |