This passage is mainly about ________.




A.isolating antibiotics in cheese, sugar, and slime
B.antibiotics in the field of medicine
C.using folk medicines in place of modern medicines
D.the validity of folk remedies and their use for advances in modem medicine

_________(47)




A.In addition
B.In reality
C.In contrast
D.In fact

Students suppose to read all the questions carefully and find out the answers to them.




A.suppose
B.all the questions
C.out
D.them

Every motorbike must be equipped with a _________ mirror.




A.front view
B.rear view
C.behind sight
D.inside sight.

- Thuy: This file is very important. You should include it in our document. - Thu: I know. It is ________.




A.significant
B.optional
C.indistinct
D.indispensable

They are having their house________ by a construction company.




A.to paint
B.being painted
C.painting
D.painted

______ (58)




A.way
B.road
C.signal
D.direction

With the help of new computer programs, we can solve many problems quickly and accurately.




A.The new computer programs are quick and accurate.
B.New computer programs have enabled us to solve many problems quickly and accurately.
C.We can solve problems quickly and accurately without computers.
D.New computer programs are not able to solve many problems quickly and accurately.

The word “ inception” in line 8 is closest in meaning to ____.




A.requirements
B.beginning
C.insistence
D.rules

The effects of cigarette smoking ______to be extremely harmful so far.




A.is proved
B.will be proved
C.are proved
D.have been proved