A. where B. which C. why D. who
单项选择题—Is this your key, John —No, it isn't, （） is over there.
A.I B. Me C. My D. Mine
单项选择题Dentimax's latest marketing campaign for their Little Teeth （）is aimed at the parents of infants and small children.
A. target B. products C. commerce D. technician
