单项选择题
A.acute B.elaborate C.virtual D.delicate
They are giving away free（）of this new kind of cooking ...
单项选择题They are giving away free（）of this new kind of cooking oil.
A.illustrations B.demonstrations C.examples D.samples
I'm very sorry to have（） you with so many questions on ...
单项选择题I'm very sorry to have（） you with so many questions on such an occasion.
A.interfered B.offended C.impressed D.bothered
He bought the house with a(n)（）to making a quick profit...
单项选择题He bought the house with a(n)（）to making a quick profit out of it.
A.goal B.purpose C.eye D.reason
