I don’t think he has completed the task , ____________?
| A．does he | B．do I | C．hasn’t he | D．has he |
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 murderer was brought in, with his hands behind his back.
| A．to be tied | B．being tied | C．tied | D．having tied |
--" Would you mind the window? It's hot here!" May said.
--"__________. "Tom replied.
| A．to open ; No, please | B．open ; Yes, please |
| C．opening; No, of course not | D．opening ; Yes, please |
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 |