Cho phản ứng hạt nhân sau $ _{17}^{37}Cl+X\to n+_{18}^{37}\text{Ar} $ . Hạt nhân X là
A.$ _{1}^{1}H $.
B.$ _{2}^{4}He $.
C.$ _{1}^{3}T $.
D.$ _{1}^{2}D $.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
I went up to read Marian a story, but she was ______ asleep.
A.full
B.deeply
C.fast
D.well

Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions.
My aunt is a bit of a wet _____. She’s always spoiling everyone’s fun
A.sheep
B.rat
C.rag
D.blanket

Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions.
Peter was born and brought up in Hastings and knows it like the _____.
A.back of his hand
B.tip of the tongue
C.nose on his face
D.hair on his head

Choose the letter A, B, C, or D to indicate the correct answer to the following question. I just took it ________ that he’d always be available.
A.easy
B.into account
C.for granted
D.into consideration

Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions.
Everyone bosses me about at work, I’m nothing but a __________.
A.lame duck
B.general dogsbody
C.blue- eye boy
D.marked man

Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions.
I was already fed up with the job, but when the boss walked into my office and told me he expected me to work overtime that was the ________. I quit
A.final curtain
B.last waltz
C.end of the line
D.last straw

Choose the letter A, B, C, or D to indicate the correct answer to the following question. I caught the last bus by the skin of my ________.
A.neck
B.teeth
C.leg
D.mouth

Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.
The car had a(n) __________ tire, so we had to change the wheel
A.bent
B.cracked
C.flat
D.injured

Choose A, B, C, or D to indicate the correct answer to the following question. A ____of pickpockets usually gathered at the local market.
A.throng
B.crew
C.crowd
D.gang