---We can't be successful _____  we keep on working hard.
---I agree with you.
A．ifB．becauseC．unlessD．until
C
連詞unless意為“除非……如果不……”，“除了……”，多引導(dǎo)一個(gè)否定意義的真實(shí)條件句，有時(shí)也可引導(dǎo)非真實(shí)條件句。
練習(xí)冊(cè)系列答案
相關(guān)習(xí)題

科目：初中英語(yǔ) 來(lái)源：不詳 題型：單選題

______ Ling Ling is tired, _______ she wants to have a rest.
A．Because, soB．Why, becauseC．/, soD．So, because

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源：不詳 題型：單選題

Coke isn’t healthy _____ milk is healthy.
A．a(chǎn)ndB．butC．orD．/

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源：不詳 題型：單選題

I don’t have a present, _______ everyone else brings a present?
A．what ifB．ifC．how ifD．how

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源：不詳 題型：單選題

—Will you please give the dictionary to Jane?
—Sure, I’ll give it to her            she arrives here.
A. before                           B. until                            C. as soon as

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源：不詳 題型：單選題

Do you come to school by yourself ______ with a friend?
A．a(chǎn)nd B．orC．butD．yet

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源：不詳 題型：單選題

--Would you like to go bike riding with us tomorrow?  ---Sure, ____ I am busy.
A．sinceB．unlessC．whenD．until

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源：不詳 題型：單選題

Tony was seriously ill, ____ he did’t go to hospital.
A．soB．becauseC．butD．though

查看答案和解析>>

科目：初中英語(yǔ) 來(lái)源：不詳 題型：單選題

She didn’t hear about the news        Mary told her.
A．untilB．whileC．a(chǎn)fterD．though

查看答案和解析>>

同步練習(xí)冊(cè)答案