_______ that he was in great danger, Eric walked deeper into the forest.
| A．Not realized | B．Not to realize | C．Not realizing | D．Not to have realized |
26．— Why are you still here? Everybody has gone to attend the lecture by the president.
— Oh, I__________about it!
| A．wasn’t informed | B．hadn’t been informed | C．haven’t informed | D．didn’t inform |
25．Mr. Duncan raised an unnecessary question__________-he then failed to find an answer.
| A．to which | B．for which | C．with which | D．by which |
24_______the sale usually takes place outside the house ，with the audience on benches ，_______chairs or boxes。
| A．having seated | B．to seat | C．seated | D．Seating |
23．We still remember once__________round the famous tower when we were young.
| A．having taken | B．to be taken | C．having been taken | D．to have taken |
22．— Marx looks nervous.
— So___________you if you had so fierce a competition.
| A．do | B．did | C．will | D．Would |