Alexander tried to get his work in the medical circles.
| A．to recognize | B．recognizing | C．recognize | D．recognized |
----Did you look up the time of the high-speed trains to Shanghai?
----Yes, the early train is __________ to leave at 5:30 a.m.
| A．likely | B．possible | C．due | D．about |
There is no doubt _______ international cooperation is the key to _______ with cyber crime.
| A．whether; doing | B．that; dealing | C．whether; do | D．that; deal |
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 took me quite a long time to ________ the new environment here.
| A．adapt to | B．relate to | C．apply to | D．attach to |
He made another wonderful discovery, ______ of great importance to science.
| A．which I think it is | B．which I think is |
| C．which I think | D．I think which is |