1．--- It is said that free health system will soon be carried out in our city.
--- ________!
A．Oh dear B．It couldn’t be worse
C．That couldn’t be better D．It can’t be good
2．It is _____ problem that none of us can work it out.
A．so difficult B．such difficult a
C．such difficult D．so difficult a
3．The day we were looking forward to ____ finally, when we won the first prize.
A．came B．coming
C．come D．had come
4．With all your energies ______ the study of French, you will master the language.
A．concentrated B．concentrating
C．concentrated on D．concentrating on
5．The twins, who _____ their homework, were allowed to play badminton in the yard.
A．will finish B．finish
C．have finished D．had finished
