Drunk driving used to occur _______, but now it is under control.
| A．generally | B．frequently | C．practically | D．gradually |
Let those in need ________ that we will go all out to help them.
| A．to understand | B．understand |
| C．understanding | D．understood |
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 |
________which university to attend，the girl asked her teacher for advice.
| A．Not knowing | B．Knowing not |
| C．Not known | D．Known not |
________ it with me should be a good choice.Trust me!
| A．When left | B．Leave |
| C．If you leave | D．Leaving |
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 |