A-A+
Because of the great speed of light we see a
问题详情
Because of the great speed of light, we see a lamp light up almost at the exact moment ______.
A.we turn it on
B.when we turn on it
C.that we turn on it
D.which we turn it on
参考答案
正确答案:A
解析:题型:词汇题。turn on开,旋开(电灯、自来水、无线电等),turn off是其反义词,其中on是副词。“动词+副词”构成的动词短语后跟代词时,该代词必须放在动词和副词之间。which作连接代词时,在其引导的名词性从句中充当某种成分。