Nancy failed to understand what the story was about until she saw the film based on it.
A.Nancy doesn't understand what the story is about.
B.Not until she saw the film based on it did Nancy understand what the story was about.
C.It was until she saw the film based on it that Nancy understood what the story was about.
D.Nancy went to see the film before she read the story.

You never really know where you are with her as she just blows hot and cold.
A.keeps changing her mood
B.keeps taking things
C.keeps going
D.keeps testing

Một nguyên tử M có 30 electron và 35 nơtron. Kí hiệu nguyên tử M là
A.\({}_{35}^{65}M\).
B.\({}_{30}^{65}M\).
C.\({}_{35}^{30}M\).
D.\({}_{65}^{30}M\).

(7) ___________
A.catch
B.hold
C.include
D.embrace

Phần bù với \(1\) của phân số \(\frac{{97}}{{98}}\) là:
A.\(1\)          
B.\(\frac{1}{{98}}\)           
C.\(\frac{{98}}{{97}}\)    
D.\(\frac{{195}}{{98}}\)

Một con lắc đơn gồm quả cầu nhỏ khối lượng m treo vào sợi dây có chiều dài \(l = 40cm\). Bỏ qua sức cản không khí. Đưa con lắc lệch khỏi phương thẳng đứng góc \({\alpha _0} = 0,15rad\) rồi thả nhẹ, quả cầu dao động điều hòa. Quãng đường cực đại mà quả cầu đi được trong khoảng thời gian \(\dfrac{{2T}}{3}\) là
A.\(8cm\)
B.\(18cm\) 
C.\(16cm\)
D.\(6cm\)

It‘s very hot. ____ the window. please?
A.Are you opening
B.Are you going to open
C.Will you open
D.Won’t you

Don't mention soccer to Henry because he would go and play at the drop of a hat.
A.in no time
B.unquestionably
C.unwillingly
D.immediately

Tìm \(x\) biết: \(x \times 3,2 = 1,8 + 2,6\)
A.\(x = 1,75\).
B.\(x = 0,375\).
C.\(x = 1,325\).
D.\(x = 1,375\).

All of my classmates are always willing to support me whenever I am in trouble.
A.reluctant
B.ready
C.likely
D.obliged