. --So hard __________ in the past few months that he has made great progress in English.
--I can see that, only a few mistakes he made in this exam.
| A．he worked | B．did he work |
| C．he has worked | D．has he worked |
Amy joined a painting group but didn’t seem to _______, so she left.
| A．show | B．go up | C．fit in | D．come over |
------Poor Steve! I could hardly recognize him just now! 
------_______________, He has changed so much.
| A．Never mind | B．No problem | C．Not at all | D．Me neither |
-------He says that my new car is a ____________ of money.
-------Don’t you think those words are just sour grapes?
| A．lack | B．load | C．question | D．waste |
The little girl who got lost decided to remain _________she was and wait tor her mother.
| A．where | B．what | C．how | D．who |
So sudden ________that the enemy had no time to escape.
| A．did the attack | B．the attack did | C．was the attack | D．the attack was |