Calm and tell me what happened.
A. outB. downC. inD.up
12. Sam was trying hard .
A. not to laugh B. to not laughC. not laughing D. to not laughing
13. You forget what I told you. It’s very important.
A. mustn’t B. needn’t C. don’t have to D. can’t
14. Cool the burns immediately so as to tissue damage.
A. ease B. relieve C. minimizeD. maximize
15. is a long stick that someone put under their arm to help them, walk when they have hurt their leg.
A. Crutch B. Wheelchair C. Stretcher. D. Bandage
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Sinh Học lớp 12
