The idea of fish being able to produce electricity strong enough to light a lamp is almost unbelievable, _____ several kinds of fish are really able to do this.
|
A．therefore |
B．and |
C．then |
D．but |
Sally worked late in the evening to finish her report _____ her boss could read it first thing next morning.
|
A．because |
B．so that |
C．before |
D．or else |
John knocked at the door for nearly five minutes____his wife opened it.
|
A．when |
B．before |
C．until |
D．as |
_____ was known to all , Willian had broken his promise ______ he would give us a rise.
|
A．As; which |
B．As; that |
C．It; that |
D．It ; which |
The passenger was very impolite to the conductor, ____ , of course , made things even worse.
|
A．who |
B．whom |
C．which |
D．what |
--- Are you familiar with the music ?
--- Yes. There was a time _____ this kind of music was quite popular.
|
A．when |
B．that |
C．with which |
D．about which |
