Tính đạo hàm của hàm số  y = cos x − 3 9 2 x

A.  y ' = sin x − 4 cos x − 3 ln 3 3 4 x

B.  y ' = sin x − 2 cos x − 3 ln 3 3 4 x

C.  y ' = − sin x + 4 cos x − 3 ln 3 3 4 x

D.  y ' = − sin x + 2 cos x − 3 ln 3 3 4 x

The interactive whiteboard involves students directly in work in front of the board, ____ most of them love.

A. that

B. Ø

C. which

D. whose

Mark the letter A, B, C, or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges.

Thomas and Peter are meeting after a long time.

Thomas: “How have you been recently?” Peter: “_____”

A. I am going on holiday next week.

B. Pretty busy, I think.

C. By car, usually.

D. I am working here.

H i ệ u   b ì n h   p h ư ơ n g   c á c   s ố   l ẻ   l i ê n   t i ế p   t h ì   l u ô n   c h i a   h ế t   c h o

A .   8

B . 9

C . 10

D .   C ả   A , B , C   đ ề u   s a i

Mark the letter A, B, C, or D to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.

Volunteering also means getting to meet people with a similar passion.

A. alike

B. identical

C. common

D. distinct