欧美日韩黄网欧美日韩日B片|二区无码视频网站|欧美AAAA小视频|久久99爱视频播放|日本久久成人免费视频|性交黄色毛片特黄色性交毛片|91久久伊人日韩插穴|国产三级A片电影网站|亚州无码成人激情视频|国产又黄又粗又猛又爽的

We can’t take part in the competition ________ we get our student card.

A．before B．if C．While D．a(chǎn)s

A

解析連詞辨析。A.在……之前  B.如果 C. 當(dāng)……時  D.由于。句意：在我們獲得我們的學(xué)生證之前，我們不能參加比賽。故選A

練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源： 題型：單選題

He asked his father why he was not able to hatch chickens ______hens could.

A．however B．while C．a(chǎn)s D．a(chǎn)lthough

查看答案和解析>>

科目：高中英語 來源： 題型：單選題

My mother is always warning me when I go out, “Don’t get off the bus ____ it is stopping.”

A．untilB．beforeC．whileD．a(chǎn)fter

查看答案和解析>>

科目：高中英語 來源： 題型：單選題

Tom searched carefully in the room _____ he might discover exactly what he needed.

A．in thatB．in order that C．in caseD．even though

查看答案和解析>>

科目：高中英語 來源： 題型：單選題

Even in winter the roadsides were places of beauty, _______ countless birds came to feed on the berries and on the seed heads of the dried weeds rising above the snow.

A．whichB．whenC．whereD．what

查看答案和解析>>

科目：高中英語 來源： 題型：單選題

_____there are many different types of food, some animals spend their lives eating only one type.

A．Since B．As C．Despite D．While

查看答案和解析>>

科目：高中英語 來源： 題型：單選題

My mother is always warning me when I go out, “Don’t get off the bus ____ it is stopping.”

A．until B．before C．while D．a(chǎn)fter

查看答案和解析>>

科目：高中英語 來源： 題型：單選題

(2013·安徽蚌埠二檢)Could it be in the restaurant ________ you had dinner with me yesterday ________ you lost your handbag?

A．where; when B．which; where
C．that; which D．where; that

查看答案和解析>>

科目：高中英語 來源： 題型：單選題

—Where's that report?
—I brought it to you ________ you were in Mr.Black's office yesterday.

A．if B．when C．because D．before

查看答案和解析>>

同步練習(xí)冊答案