they are twins, they don’t look the same at all.
| A．Because | B．Though | C．As | D．Since |
They got________excited that they couldn’t get to sleep．
| A．very |
| B．enough |
| C．too |
| D．so |
The lady is so________and she believes the man who always tells lies．
| A．clever |
| B．smart |
| C．stupid |
| D．intelligent |
—Your English is very good．Who taught you？
—________．I learned it all by myself．
| A．Somebody |
| B．Everybody |
| C．Nobody |
| D．Anybody |
He may lose the match________he practices hard．
| A．if |
| B．unless |
| C．while |
| D．until |
I will write a letter to you as soon as I________in the USA．
A．arrive
B．will arrive
C．arrived
D．is arriving