7.The teacher told us ___________________.A.that light trave

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7.The teacher told us ___________________.A.that light traveled faster than sound B.if light tra
选哪个
C.that light travels faster than sound
D.if light travels faster than sound

A
再问：为什么？
再答：不好意思说错了，应该选C 首先排除B、D，这里用if完全说不通然后A和C，光比声音传播的快，这是个真理，对于真理的东西都是用一般现在时。所以选C

7.The teacher told us ___________________.A.that light trave The physics teacher told the boys and girls that light trave 3.The teacher told us that light _______ as sound. our teacher told us that sound travels____than light. A much 改错 The teacher told us that light traveled faster than sound The teacher told us that light _____（travel）faster than soun The teacher told us that light __(travel) faster than sound. Our teacher told us that light travels faster than s_____. The teacher told us that sound___________________more slowly The teacher told us light ___ fast than sound.(travel) The physical teacher told us light( )faster than sound The teacher told us that the sun ____in the east.