It is not until recently ______ the scientists have found proof of there being water on Mars.
A．whenB．thatC．howD．what
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

We can surely overcome these difficulties _,___ we are closely united.
A．so far asB．so long asC．a(chǎn)s soon asD．a(chǎn)s well as

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

Why these things happened was ____ the driver had been careless.
A．because ofB．owing toC．due toD．that

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

__________ you trust him, you may as well follow his advice.
A．So thatB．Now that C．Even ifD．Except that

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

There is nothing ___ two chairs in the room.
A．besideB．butC．except thatD．of

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

Try the new cleaner. Just a few minutes every day－that’s all it takes－_________ you could have shining floors and furniture.
A．butB．a(chǎn)ndC．orD．so

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

Come earlier, ___ you won’t get anything to eat.
A．orB．unlessC．thenD．when

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

Small _____ it is, the pen is a most useful tool.
A．becauseB．soC．ifD．a(chǎn)s

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

_______ you go , you will be warmly welcomed .
A．No matter whereB．No matter whatC．WhicheverD．However

查看答案和解析>>

同步練習冊答案