HOC24
Lớp học
Môn học
Chủ đề / Chương
Bài học
rút gọn biểu thức :
A =\(\dfrac{3}{\sqrt{7}-2}+\sqrt{\left(\sqrt{7}-3\right)^2}\)
Tìm lỗi sai,sửa và giải thích :
1, I invited Tim to my birthday party , so I haven't had a reply from him yet
A B C D
2, The worse drought which occurred last summer damaged all the fruit
A B C
crop in the re gion
D
Tìm sửa lỗi sai và giải thích :
1, Papers which are written in pencils won't be accept by the teacher
2, The children played outdoors last night when it began to rain very hard
3, Students are expected to be respectful of his teachers and other adults
Tìm lỗi sai , sửa và giải thích :
1, My family spent an interested holiday in Europe last summert
2, Try to avoid to make him angry
3, Tony thought he will go to London the following year
Chọn đáp án đúng và giải thích :
1, The plane arrived at the ail-port .... after a violent storm
A safe B safely C safety D unsafe
2, Peter is short.He is not tall .... to be a policeman
A so B enough C quite D too
3, We must .... right now or we'll be late
A leave B leaving C to leave D leaves
4, She is living with her eldest son, ..... ?
A does she B aren't she C isn't she D do she