Mark the best option.
a) You should go and see the doctor if your flu _________ on for a week.
( ) is going
( ) goes
B) If someone _________ a cold, what advice do you give him/her?
( ) has
( ) are having
c) This sauce is much too runny. _________ you think it needs to be thickened?
( ) Aren’t
( ) Don’t
d) It’s __________ advisable to tell lies at an interview.
( ) never
( ) once in a while
e) Human resources officials are the ones who are _________ to discuss such subjects.
( ) always qualified
( ) qualified always