The question was so ________ that there was a ________ expression on the teacher's face.
| A．puzzled; puzzling | B．puzzled; puzzled |
| C．puzzling; puzzled | D．puzzling; puzzling |
Once you want to do something, you must get down _____it well. ( )
| A．do | B．doing |
| C．to do | D． to doing |
It was yesterday _____I went to the railway station to meet my uncle. ( )
| A．why . | B．who | C．what | D．that |
Liu Yang became the first woman astronaut in China _____into space. ( )
| A．ravel | B．travelled |
| C．to travel | D． being travelled |
-What's the matter?
-The cook _____five minutes ago, and there are fifty dinners still to cook.( )
| A．left | B．leaves |
| C．has left | D．was leaving |
Most of us_________more than one thousand English words before we came to this school. ( )
| A．would learn | B．will learn |
| C．have learned | D．had learned |