________ blood if you can and many lives will be saved.
A．Giving B．Give C．Given D．To give
The traffic rule says young children under the age of four and________ less than 40 pounds must be in a child safety seat
A．being weighed B．weighs
C．weighed D．weighing
Please do me a favor—________ my friend Mr.Smith to Youth Theater at 7：30 tonight.
A．to invite B．inviting C．invite D．invited
________ it with me should be a good choice.Trust me!
A．When left B．Leave
C．If you leave D．Leaving
(2013·四川，8)________which university to attend，the girl asked her teacher for advice.
A．Not knowing B．Knowing not
C．Not known D．Known not
(2013·陕西，14)The witnesses ________ by the police just now gave very different descriptions of the fight.
A．questioned B．being questioned
C．to be questioned D．having questioned
