The April Fools' tradition is said ________ in the sixteenth century.
| A．to start | B．to be starting |
| C．to be started | D．to have started |
She is the only one of the students who ____ praised by the teacher.
| A．is | B．are | C．has | D．have |
They talked for about an hour of things and persons _____ they remembered in the school.
| A．which | B．that | C．who | D．whom |
It was not ______she took off the glasses ________ I realized she was a famous film star.
| A．when; that | B．until; that | C．until; when | D．when; until |
______ the day went on, the weather got worse.
| A．With | B．Since | C．While | D．As |
He went home for lunch____ the clock struck twelve.
| A．while | B．immediately | C． right away | D．at once |