The lights is on.When you leave,please _____.
OK,I won't forget ____it.( )
turn it off; to do
turn off it; doing
turn on it; to do
________ you keep moving, you'll never reach the top of the mountain.( )
If
Although
Unless
I asked him a question, but he didn't reply.
Maybe he ________about something else while you were asking.( )
thought
thinks
was thinking
The song Dream It Possible often reminds me that we should always try our best and never ________catching our dreams.( )
give up
take up
put up
What should we pay attention to ________mistakes during the exams?
Some details.( )
avoiding making
avoid to make
to avoid making
The accident happened ________ a cold morning but luckily, no one was injured.( )
at
on
in