Question

The geography teacher told us yesterday that the earth ________ around the sun.

A. moves
B. moved
C. has moved
D. was moving

Answer 1

答案A
解析：本题考查的是动词的时态。一般认为在宾语从句中，主句和从句时态一致。它的主句时态是过去时，宾语从句应是与过去有关的某种时态，误选B。但句中“地球绕着太阳转”表达的是客观真理，自然现象，故其不受其他条件影响，用一般现在时。故正确答案为A。