Scientistssayitmaybefiveorsixy

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更新 2022-09-03
科目英语
题型单选题
难度中等
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Scientists say it may be five or six years _______ it is possible to test this medicine on human patients.

A．since

B．after

C．before

D．when

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It was several yearsI finally realizedDavid had lied to me.

A．when;that

B．that;when

C．before;that

D．until;why

题型：未知
难度：未知

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Though flu is adisease,it can cause death.

A．regular

B．normal

C．usual

D．common

题型：未知
难度：未知

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A true friend is the one that is coming in the door whileelse is going out.

A．somebody

B．no one

C．nobody

D．everyone

题型：未知
难度：未知

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With the development of science,more new technologyto the fields of IT.

A．has introduced	B．is being introduced
C．is introduced	D．was introduced

题型：未知
难度：未知

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several times in the exam,John didnt have much confidence in himself.

A．Having failed

B．Failing

C．To fail

D．Failed

题型：未知
难度：未知

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