The teacher told us that light            faster than sound．

A．traveled                        B．had traveled           C．is traveling             D．travels

The teacher told us that light _______ faster than sound．

A．traveled                                    B．had traveled

C．is traveling                                D．travels

The teacher told us that light _______ faster than sound.

A．traveled         B．had traveled         C．is traveling           D．travels

The teacher told us that light ________ faster than sound.

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(1) The visitor ________ that he ________ very glad to visit our country.

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(2)The teacher told us that light ________ faster than sound.

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