Elephants can be ______ years old.
| A．sixty |
| B．fifty |
| C．thirty |
| D．one hundred and fifty |
He helped his mother ________ the housework.
A. do B. does C.did
Isawaboy_____awaywhenIpassedthepark.
A.runB.ranC.for
Itistime_____home.
A.goB.togoC.togoto
I get up _____a quarter to six______a hot morning.
| A．at, in | B．at, at | C．on, on | D．at, on |