24. You ought to have put the milk in the refrigerator, and now ________sour.
A．it smellB．it is smeltC．it smellsD．it is smelling
C
考查時態(tài)。句意：你應該已經(jīng)把牛奶放進冰箱了，可是現(xiàn)在聞起來酸了吧！結(jié)合語境可知下文描述的是現(xiàn)在客觀存在的狀態(tài)，故用一般現(xiàn)在時態(tài)，選C。
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

Thomas _____ in inventing many electrical machines
A．was successfulB．succeedC．was successD．successes

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題


It is reported that between the year 1550 and 1950 about one kind of living things___each year .
A．died outB．died of C．died from D．died down

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

The reason ________they were fired was ____they were not honest.
A．for ;becauseB．why ; thatC．for ;thatD．why ;because

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

Come and visit me whenever _______.
A．you are convenientB．you will be convenient
C．it is convenient for youD．it will be convenient for you

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題


It is required that in no case ________ our password.
A．we should forgetB．should we forget
C．shall we forgetD．we shall forget

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

_______ is necessary for you to lock the car when you don’t use it.
A．WhatB．ThisC．ItD．That

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題


On the chairs_______, who had come to Sanming looking for jobs.
A．three young men satB．sat three young men
C．did three young men sitD．three young men sitting

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題


.In my opinion, life in the twenty-first century is much easier than _______.
A．that used to beB．it is used toC．it was used toD．it used to be

查看答案和解析>>

同步練習冊答案