Thousand of antibiotics _______, but only about thirty are in common use today.




A.are developing
B.have been developed
C.have been developing
D.have developed

A.tables
B.books
C.roots
D.roofs

The word "bygone" in line 11 could be replaced by _________ .




A.past
B.forgotten
C.overlooked
D.original

At this time tomorrow, hopefully, I'll be relaxing at home rather than working this hard.




A.Tomorrow, rather than relaxing at home as I'd hoped to do, I'll be working quite hard.
B.I hope that, instead of working so hard at this time tomorrow, I'll be at home resting.
C.I'm planning to relax at home tomorrow, instead of working so hard.
D.Resting at home is something I hope to be doing at this time tomorrow, but I'll probably be working quite hard instead.

It is implied in the passage that at the end of the Revolutionary War, a paper dollar was worth __________ .




A.exactly one dollar
B.just over one dollar
C.just under one dollar
D.almost nothing

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best joins each of the following pairs of sentences in each of the following questions.
He works in the same office with two women. They are very beautiful and tactful.




A.The two women’s beauty and tact explain why he wants to work at their office.
B.He works in the same office with two women who are very beautiful and tactful.
C.The offices where he and the two very beautiful and tactful women work are the same.
D.Working in the same office with the two beautiful women makes him very tactful.

Ice always melts if the air temperature will be warm enough




A.melts
B.the air
C.will be
D.warm enough

Câu I
Mark the letter A, B, C or D on your answer sheet to indicate the word that differs from the rest in the position of the main stress in each of the following questions.




A.narrative
B.peninsula
C.orchestra
D.diplomat

___________ (64)




A.performed
B.staged
C.laid
D.set

What conclusion can be drawn from the passage about both the sand dunes and salt marshes ofPrince Edward Island?




A.They have never been used.
B.They were once used but have long since been abandoned.
C.They have been used continuously since the island was first settled.
D.They were long unused but have recently been exploited.