No one knows when such a custom first _____.
| A．came into power | B．came into being |
| C．came true | D．came out |
Before driving into the city, you are required to get your car.
| A． | washed | B． | wash | C． | washing | D． | to wash |
They are living with their parents for the moment because their own house ____.
| A．is being rebuilt | B．has been rebuilt | C．is rebuilt | D．has rebuilt |
If you happen to get lost in the wild, you’d better stay ______ you are and wait for help.
| A．why | B．where | C．who | D．what |
-Did you catch what I said?
-Sorry. Ia text message just now.
| A． | had answering | B． | have answered | C． | would answer | D． | was answering |
I looked up and noticed a snake ______ its way up the tree to catch its breakfast.
| A．to wind | B．wind | C．winding | D．wound |