I'm expecting a pet dog for long，but mom has no time to buy _________ for me．
| A．it | B．one | C．this | D．that |
—How old are you?
—I’m nine ____________ old.
A.year B.years C.year’s
—When is Tree Planting Day?
—It’s ____________ March.
A.in B.on C.at
What events do you have ____________ your school?
A.for B.on C.at
—____________ is that dress?
—Thirty dollars.
A.When B.How much C.What
—When were you born?
—____________.
A.On March nineth B.In May 5 C.On February fifteenth