--How much are these pants? --_______ twenty dollars．．
| A．It is | B．Its | C．These are | D．They’re |
The ola man _______ a headache, and his son ______ sad.
A. has, is
B. have, feels
C. has , feeling
The office building _____ the classrooms.
A.behind B.behinds C.is behind
He _____ hamburgers.
A.like eat B.likes eating C.like to eats
She can't ________ in the lake.
A.swimming B.swiming C.swim
Juice and water are healthy drinks，_____ Coke isn't healthy drink.
A.and B.but C.or