David has tried 3 times to repair the clock. He will try __________ time after having a rest.

2023-08-08

A.four
B.fourth
C.the fourth
D.a fourth

参考答案:D

A、B项语法错误;a fourth time意为“又一次,再一次”;the fourth time意为“第四次”,强调顺序:句意为“大卫已经尝试了三次去修理那个表,他休息后会再试一次”,虽然数量上是第四次了,但此处并不强调先后顺序,故选D。