_______these coins are of different shapes, sizes and colors, they all date back to a long, long time ago.
A．SinceB．UnlessC．OnceD．While
D
考查連詞：A. Since自從，既然B. Unless除非C. Once一旦D. While當(dāng)…時(shí)候，雖然，句意是：雖然這些硬幣形狀顏色大小不同，但它們都可追溯到很遠(yuǎn)很遠(yuǎn)以前。選D。
練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目：高中英語 來源：不詳 題型：單選題

     I admit that there are problems, I don’t agree that they cannot be solved.
A．WhileB．WhenC．AsD．For

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

It ____ we had stayed together for a couple of weeks ____ I found we had a lot in common.
A．was until; whenB．was not until; that
C．was not until; whenD．was until; that

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

We have decided to fulfill the task in time,        difficulties we may meet with.
A．no matter howB．howeverC．whateverD．whichever

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

The school _______ I visited the other day was not the one _______ I once studied.
A．that; whichB．which; whereC．where; whichD．where; where

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

        you make a promise,you should keep it.
A．UnlessB．ThoughC．OnceD．Even if

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

There is no doubt _________ the world climate has been changing in recent years.
A．thatB．whatC．ifD．whether

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

One more week, ______ we will not accomplish the task.
A．a(chǎn)ndB．so thatC．orD．if

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

I didn’t realize my mistake ________ my teacher had a face­to­face talk with me.
A．untilB．a(chǎn)fterC．sinceD．when

查看答案和解析>>

同步練習(xí)冊(cè)答案