When he looked up，he suddenly found himself ______by a group of teenagers，____looked at him anxiously.
| A．to be surrounded；which |
| B．surrounded；who |
| C．be surrounded；who |
| D．having been surrounded；which |
—Have we water?
—Yes, . We’d better get some.
| A．run out of; we have run it out | B．run out of ; our water has run out |
| C．run out of; our water has been run out | D．run out; our water has run out |
Much new and high technology has been introduced from America, great increase in production of the company.
| A．resulting in | B．resulted in | C．leads to | D．having led to |
I find this treatment is very to my health.
| A．willing | B．illegal | C．beneficial | D．serious |
They really had a great time, designing everything, drawing the blueprint, ______the angles and so on.
A looking out B taking out C finding out D figuring out
When a discussion is under way, everyone is welcome to have the_________ in class.
A floor B time C chance D right