In some way, he ______________ severalof his friends in the trouble.
A. involved
B. involving
C. will involved
D. will have involve
You can expect a long and healthy life if you give ____ smoking.
A. up
B. to
C. off
D. of
I will carry _____ my plan if you are not against it.
A. to
B. out
C. in
D. of
泡腾性颗粒剂的泡腾物料为（）
A. 酒石酸与枸橼酸
B. 枸橼酸与碳酸钠
C. 枸橼酸与碳酸氢钠
D. 酒石酸与碳酸氢钠
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