They didn't go to bed_____ the work was finished.
| A．when | B．while | C．until | D．after |
My father’s mother is my________.
| A．aunt | B．sister | C．brother | D．grandmother |
_______his sister.
| A．These | B．Those | C．They’re | D．That’s |
_______are his brothers.
| A．It | B．This | C．That | D．These |
The dining room is behind our school science lab.
next to the library.
| A．It’s | B．they are | C．The dining room | D．its |
They can’t seeflowers in the picture.
| A．some | B．a | C．an | D．any |