Question

—Why, my new computer is rubbish! Five hours has passed and it still hasn’t finished the downloading.
—Don’t worry. You know, sometimes the Internet ________ be very slow.

A．can

B．may

C．should

D．must

Answer 1

A

考察情态动词。Can考察；表示可能性。结合句意可知A正确。句意：—为什么？我的新电脑真是垃圾。四个小时过去了还是没有下载完。—别担心。你知道的，有时候网络也可能很慢。