Excuse me, may I ask you some questions？ But I won’t ______much of your time.
A. look up B. stay up C. take up
He wanted _________ an inventor .
A．to be B．being C．is
___________ is better than to receive.
A．To give B．Give C．Have given
We have helped the animals in danger _________ it has still a lot of things to do .
A．so B．and C．but
Most of the pandas are living in the __________ .
A. nature Reserves B. Nature Reserves C. nature Reserves
We need _________ more exercises every day.
A. to do B. doing C. do