—Is this ________ ruler? —Yes，it’s her ruler．
A．your B．your sister’s C．your brother’s
Don’t hurry. There are twenty minutes left. It’s _____ for us to get to the cinema.
| A．enough early | B．early enough | C．enough quickly | D．quickly enough |
He _____ there _____ his father came.
| A．didn’t wait…till | B．left…till | C．waited…until | D．waited…after |
I wonder what you mean __________ saying that?
| A．for | B．by | C．with | D．to |
“Remember not ______ your homework at home again,” said the teacher.
| A．leave | B．to leave | C．forget | D．to forget |
Our Earth will be ________ if we go on cutting down millions of trees every year.
| A．in great danger | B．danger | C．dangerously | D．out of danger |