George once told me that he would visit our house，but，for various reasons，he ________so far．
| A．didn't | B．hasn't | C．hadn't | D．wouldn't |
Johanna waited at the bus stop for nearly an hour ___ the bus finally arrived.
| A．when | B．unless | C．before | D．after |
No bread eaten by man is so sweet as _____ earned by his own labor.
| A．one | B．that | C．such | D．what |
Elizabeth has already been admitted to Beijing University her wildest dreams.
| A．at | B．beyond | C．within | D．upon |
Because he works in a remote area, he visits his parents only ______.
| A．occasionally | B．partly | C．practically | D．once |
–Did you go to the show last night?
–Sorry. No boy and girl in the area_________invited
| A．were | B．have been | C．has been | D．was |