Many scientists believe sea levels ______ by more than one meter by the end of the 21st century.
A．will be risenB．will have risen
C．will have beenD．will be rising
B

試題分析：考查時(shí)態(tài)：句意：很多科學(xué)家相信，海平面到21世紀(jì)末為止將會(huì)上升超過一米。時(shí)間狀語是by the end of the 21st century.如果by+將來時(shí)間，謂語的時(shí)態(tài)應(yīng)該是將來完成式，選B。
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

Put on your coat！I______　you down to the doctor.
A．takeB．tookC．have takenD．a(chǎn)m taking

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

My friend, Tom had just lost his job when, at the precise moment, his girlfriend ______ up with him. She was rubbing salt into his wound.
A．breaksB．has brokenC．had brokenD．broke

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

—Look, it ____ again.
—Yeah. This is the third snow we ____ this spring.
A．will snow; are havingB．has snowed; had had
C．is snowing; have hadD．snows; have had

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

--- Look!Somebody ___ the sofa.
--- Well,it wasn’t me. I didn’t do it.
A．is cleaningB．was cleaning
C．has cleanedD．had cleaned

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

Our English teacher , having explained to us how to design a project, allowed us  a whole week’s preparation and then ______the class.
A．to dismissB．dismissed
C．dismissingD．having dismissed

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

For the past year, he ______ a flat with others and trying to save money to open his own business.
A．has been sharingB．was shared
C．had been sharingD．is sharing

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

—When did you have your school trip?
—______.
A．In five daysB．For five days
C．Twice a dayD．Five days ago

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

—What about your self-drive trip yesterday?
—Tiring! The road is being widened, and we______________ a rough ride.
A．hadB．have C．would have D．have had

查看答案和解析>>

同步練習(xí)冊(cè)答案