It is generally believed that teaching is ________ it is a science.
| A．an art much as | B．much an art as |
| C．as an art much as | D．as much an art as |
--" 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 |
I'm sorry. I _____________ you__________ to me.
| A．don't know; are speaking |
| B．don't know ;were speaking |
| C．didn't know; were speaking |
| D．didn't know; are speaking |
--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 |