______we cannot close the gulf between us, we can try to bridge it so that we may be able to talk across it.
| A．Unless | B． As | C．While | D．If |
相关试题
It never occurred to humans until the mid-1990s ______ some animals can be cloned.
| A．where | B．that | C．when | D．what |
---You look unhappy. Did you fail the tests?
--- I ______ the written papers but didn’t pass the oral examination.
| A．went through | B．went over | C．got over | D．got through |
I’ll prepare more dishes_________ your guests decide to stay for dinner．
| A．in case | B．in order that | C．even if | D．as if |
Large quantities of information, as well as some timely help _____ since the organiza
tion was built .
| A．has offered | B．had been offered | C．have been offered |
D．is offered |
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