It is uncertain ______ side effects these weight-loss drugs will bring about, although hundreds of thousands of patients have taken it.
A．thatB．whetherC．howD．what
D

這句話考查的是主語從句，it是形式主語，因為是uncertain，所以主語是不確定的事，side effects缺少修飾，填what。句意是：雖然幾十萬患者采取了這些減肥藥但是不確定它會產(chǎn)生什么副作用。選D。
練習冊系列答案
相關(guān)習題

科目：高中英語 來源：不詳 題型：單選題

It’s a common scene in the film Tangshan Earthquake that families cry helplessly over _____ is left of their homes.
A．whatB．whichC．thereD．it

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

No one will be sure ____________ in a million years.
A．What will man look like
B．man will look like what
C．what man will look like
D．what look will man like

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

Scientists observe ___ making the most of our senses when we are young can keep us healthy later on in life.
A．ifB．whatC．thatD．When

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

Thinking________you know _________in fact you don’t is a terrible mistake.
A．what;whatB．that;whatC．what;thatD．that;that

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

The new trend of living a low carbon life is gradually changing people’s idea on ______is cool and in fashion.
A．whichB．thatC．whatD．whose

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

Alice didn’t want her parents to know___________.
A．what has she doneB．what was she doing
C．how she had doneD．what she was doing

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

—The two people speak different languages and can not communicate with each other well.
—Oh，I see. That’s ________ misunderstanding occurs.
A．whenB．whatC．whichD．why

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

The newly-built café, the walls of ______ are painted green, is really a peaceful place for us, especially after work.
A．whichB．itC．thatD．what

查看答案和解析>>

同步練習冊答案