Never before______ so highly successful in his attempts to forecast the weather accurately on a small scale．
A．man has been B．man is C．has man been D．will be man
Yesterday I had a word with the CEO of the company, ___ who used to teach at Beijing University．
A．one B．the one C．that D．it
In our university there are several big parks ____we students can go to enjoy the beautiful scenery．
A．to which B．at which C．from which D．in which
Jenny works hard as usual and it has___．She got the first in the final exam again．
A．showed off B．paid off C．paid back D．turned up
No．50 High School is as new as No．48 High School．____, it is more beautiful．
A．If anything B．If something C．If necessary D．If so
We students got lost in the forest and decided to remain ____we were and waited for the guide
A．where B．what C．how D．who
