Which of the following must a promissory note contain to make it negotiable？（）

单项选择题Why does a sole proprietorship not pay taxes at the business level？（）

A.It is not a separate legal entity from the owner
B.It is a small business that is exempted from taxation
C.It is a not-for-profit organization
D.It is generally an institution with no business dealings

单项选择题This is my father ---Hello , （） Liu.

A．Miss
B． Mr
C．Mrs
D．Father

单项选择题Hello，may I speak to John？ ——（）

A.Yes，this is John speaking
B.Yes，I’m John
C.Yes，that’s right
D.Yes，speak，please

单项选择题（） we’ll have the sports meet tomorrow depends on the weather.

A.When
B.If
C.Whether
D.That

单项选择题（） we’ll have the sports meet tomorrow depends on the weather.

A.When
B.If
C.Whether
D.That

单项选择题Nancy required that her son （） to bed at 9 pm if he had to go to school the second day.

A.go
B.going
C.goes
D.went

单项选择题A reply card is （） with this invitation for your convenience.

A.closed
B.enclosed
C.entered
D.covered

单项选择题You have to make a （） where to live when you leave home.

A.decide
B.choose
C.decision
D.move

单项选择题--Tom is going to a concert tomorrow evening. --So （）.

A.I am
B.am I
C.I will
D.will I

单项选择题（）is responsible will have to pay for the damage (损坏).

A.What
B.Whatever
C.Who
D.Whoever