The Christmas gifts need to be ready next Friday.
A．by B．of C．in D．at
For the engine to work, the green button be in the “on” position.
A．can B．would C．must D．might
Kids are not allowed to leave kindergartens their parents come to pick them up.
A．since B．unless C．although D．because
I have to walk upstairs. The lift down.
A．was breaking B．broke C．will break D．has broken
Joseph off at the airport, Sally finished her work earlier.
A．Having seen B．Seen C．To see D．To be seen
The examination will begin at 10:30. Those who come late to the examination room.
A．have not been admitted B．don’t admit
C．will not be admitted D．didn’t admit
