Some of the students are not sure ___ spelling the word, while others are not sure ___ the use of some grammatical rules.
A．of… aboutB．a(chǎn)bout…toC．of…toD．for….of
A
be sure of意思是：確信。be sure about意思是：對…有把握。
練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源：不詳 題型：單選題

Too bad—— I missed the early train ______ only a few minutes!     
A．by B．inC．a(chǎn)tD．a(chǎn)fter

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

This new model of car is so expensive that it is ______ the reach of those with average incomes.
A．overB．withinC．beyondD．below

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

He had a hard time ___ supporting the family.
A．withB．forC．a(chǎn)tD．in

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

In the dark street, there wasn’t a single person ___ she could turn for help.
A．thatB．whoC．from whomD．to whom

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

The mother believes that John's stupid, but it's different _____ of Mary; she's just lazy.
A．in spiteB．in the caseC．in the courseD．in case

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

The touch they had both kept in ＿＿＿many years broke.
A．forB．onC．intoD．with

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

The pianist began to play and the girl in red began to sing ＿＿＿＿the music.
A．withB．a(chǎn)longC．throughD．to

查看答案和解析>>

科目：高中英語 來源：不詳 題型：單選題

The judge scolded the lawyer because he didn’t keep his remarks to the topic ________discussion.?
A．inB．byC．withinD．under

查看答案和解析>>

同步練習(xí)冊答案