Question

Our teacher told us that light _____ much faster than sound.

A．traveled

B．travels

C．is traveling

D．was traveling

Answer 1

B

此題考查賓語(yǔ)從句的時(shí)態(tài)。句意：老師告訴我們光比聲音傳播速度快。當(dāng)賓語(yǔ)從句描述的是事實(shí)或客觀真理，不管主句的謂語(yǔ)動(dòng)詞是什么時(shí)態(tài)都要用現(xiàn)在時(shí)。選B。