“_____ when does the pub stay open?” “About midnight.”
| A．Since | B．Before |
| C．Until | D．After |
_______ I could express my thanks to the traveler, he had already disappeared in the rain.
| A．Before | B．When | C．Until | D．While |
Fang Fang is such a kind girl _______ everyone likes very much.
| A．like | B．which | C．as | D．That |
Don’t let any failure discourage you, for you can never tell _______ close you may be to victory.
| A．how | B．that | C．which | D．Where |
________ seems to have been great difficulty in turning out excellent graduates.
| A．That | B．What | C．It | D．There |
Barry must have visited the Eiffel Tower before, _______ he?
| A．mustn’t | B．hadn’t | C．hasn’t | D．needn’t |