8. It was recommended that passengers ?____? smoke during the flight.?
A. not
B. need not?
C. could not
D. would not?
9. Only take such clothes ?____? really necessary.?
A. as were
B. as they are?
C. as they were
D. as are?
10. They lost their way in the forest, and ?____? made matter worse was that night began to fall.?
A. that
B. what
C. it
D. which?
11. Bargaining can go on the whole day, or even several days, with the customer coming and going ?____?.?
A. in places
B. at intervals
C. in person
D. at large?
12. Human behaviour is mostly a product of learning, ?____?the behavior of an animal depends mainly on instinct.
A. otherwise
B. whereas?
C. unless
D. nevertheless?
13. She ?____? a little map for me on the back of my invitation.?
A.planned
B. slipped
C. sketched
D. worked?
14. If someone is a witness, then he has to ?____? in court.?
A. augment
B. testify
C. certify
D. betray?