—— It seems that his health is improving．
—— Yes．It is ten years ______ he _______．
| A．since； smoked | B．since； did n’ t smoke |
| C．that； smoked | D．before； smoked |
He __________ the game and __________ lots of experience.
| A．won ； won | B．beat ； won | C．won ； gained | D．earned ； gained |
__________，the com-pass was first made in China.
| A．It is known to all |
| B．It is known |
| C．We all know |
| D．As is known to all |
Jim is known __________ the police __________ a criminal.
| A．to； as | B．to; for | C．for； for | D．for； as |
Ted came for the weekend wearing only some shorts and a T-shirt，__________ is a stupid thing to do in such weather.
| A．this | B．that | C．what | D．which |
She has a gift for creating an atmospherefor her students __________ allowsthem to communicate freely with each other.
| A．which | B．where | C．what | D．who |