单项选择题
A.operating B.to be operated C.to operate D.operated
What（）of blood does Tom have?A.kindB.typeC.sortD.catego...
单项选择题What（）of blood does Tom have?
A.kind B.type C.sort D.category
Let's not wait any longer, he might not（）at all.A.turn ...
单项选择题Let's not wait any longer, he might not（）at all.
A.turn over B.turn up C.turn on D.turn down
One day while Mr. King was working, he had a(an)（）and h...
单项选择题One day while Mr. King was working, he had a(an)（）and his left leg was badly injured.
A.business B.accident C.matter D.event
