--Hi, Tracy, you look tired.
--I am tired. I________ the living-room all day.
| A．painted | B．have been painting |
| C．had painted | D．have painted |
The girl__________ on the ground __________to me that she had___________ the book on the shelf.
| A．lying ; lay ; laid | B．lay ; lied ; laid |
| C．lie ; lied ; lay | D．lying; lied ; laid |
We __________ so tired. We've only been to a party.
| A．mustn't have felt | B．wouldn't have felt |
| C．shouldn't have felt | D．couldn't have felt |
The reason_________ he didn't come was _________ he had to take care of his sick mother.
| A．why ; that | B．why ; which |
| C．which ; why | D．that ; for |
The rescue team made every __________ to find the missing mountain climber.
| A．force | B．energy | C．effort | D．possibility |
"Please __________why you're so late," said his girlfriend.
| A．excuse | B．explain | C．apologize | D．tell |