The professor explained this theory so clearly that this phenomenon was easy enough ________.
| A．for us to work out | B．working out |
| C．for working out | D．to working out |
– What makes you so upset, Mr. Wang?
– That John, a student in my class, ______ himself to computer games.
| A．withdraws | B．undertakes | C．conveys | D．abandons |
Don’t worry too much about ______ mistakes. They are ______ natural part of learning.
| A．/; a | B．the; / | C．/; the | D．the; the |
I wish you hadn’t given him my telephone number, but you.
| A．did | B．had | C．do | D．have |
You may use the room as you likeyou clean it up afterwards.
| A．so far as | B．so long as | C．in case | D．even if |
—Would you take this along to the office for me?
--.
| A．It’s my pleasure | B．That’s right |
| C．Never mind | D．With pleasure |