_______, the disease diphtheria would produce a powerful poison that would kill

题型：不详难度：来源：

_______, the disease diphtheria would produce a powerful poison that would kill the paient.

A．If untreated

B．If it untreated

C．To be untreated

D．If being untreated

答案

解析

略

举一反三

—How was the weather then?
—Hardly ______ off the plane when it started to rain.

A．I had stepped

B．had I stepped

C．I stepped

D．did I step

题型：不详难度：| 查看答案

Though _____ of the danger, he still went skating on the thin ice.

A．warning

B．to warn

C．warn

D．warned

题型：不详难度：| 查看答案

________ the help of her teacher, Mary ________ in the past few months.

A．With; has made progress	B．Under; has made a progress
C．With; had made progress	D．Under; had made a progress

题型：不详难度：| 查看答案

Out _____ , and away ______ .

A．the men went ; was he	B．went the men ; he was
C．went ; he	D．the man went ; he was

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-----Peter likes playing football, but he can’t play it well.
------_____________________.

A．So does his brother	B．Nor does his brother
C．So is his brother	D．It’s the same with his brother

题型：不详难度：| 查看答案