since i.school,I haven't had much spare time.A.begun.B.began C.have begun.D.begin请帮我选正确答案以及原因

问题描述:

since i.school,I haven't had much spare time.A.begun.B.began C.have begun.D.begin
请帮我选正确答案以及原因

答案选择B,began是begin的过去式,begun是begin的完成时。此处句意为:至从我开学过后,我就没有太多空余时间了。开学是发生在现在以前的,所以选择过去式。

B.这道题要注意,since的翻译.since可以做时间状语翻译为“自从某时开始”,还可以做原因状语翻译为“由于,因为”.因为后面用的句子是完成时“I haven't had much spare time”,所以这个since应该是时间状语翻译为“自...