by some it is supposed that bad luck may be avoided by locking on wood.
A.if bad luck is coming , it will be destroyed provided that one knocks on wood.
B.there are some people who believe that it is bad luck to avoid knocking on wood
C.bad luck is said to be preventable by knocking on wood sometime
D.that knocking on wood can keep bad luck away is believed by some people

Mark the letter A, B, C, or D on your answer sheet to show the underlined part that needs correction in each of the following questions.
The first important requirements for you to become a mountain climber are your strong passion and you have good health.
A.the first important
B.to become
C.are
D.you have good health.

only when / general’s personal diaries / publish / truth / come out//
A.only when the general’s personal diaries were published the truth come out.
B.only when the general’s personal diaries had been published the truth come out.
C.only when the general’s personal diaries were published had the truth come out.
D.only when the general’s personal diaries were published did the truth come out.

be/ doctor / she / know / what /side- effects / medicine / have //
A.be a doctor , she knows what side – effects the medicine can have
B.being a doctor , she knew what side – effects the medicine could have
C.have been a doctor , she had known what side – effects the medicine could have
D.to be a doctor , she knows what side – effects the medicine might have

man/ sentence / 15 years / prison / he prove / guilty //
A.the man will get a sentence for himself to 15 years in prison if he proves himself guilty.
B.the man was sentenced about 15 years in prison and proves himself guilty.
C.the man was sentenced to 15 years in prison because he had been proved guilty.
D.the man should make his final sentence after 15 years in prison as he proved himself guilty

A.conservationist
B.prohibition
C.deforestation
D.disappointed

he decided to buy some chocolate kept in an_____ container for his father a _____ watch for his mother and a doll with__________ hair for his little sister.
A.air-tight / water – proof/ snow – white
B.airtighted / water-proofed / snow – whited
C.tight aired / proof watered / white snowed
D.tight aired / proof water / white snow

_____ limit to the extent which human beings may benefit from their own inventive genius.
A.has no
B.it not
C.there is no
D.no any

my father says he’d _____ the operation unless it is absolutely necessary .
A.rather not having
B.rather not have
C.rather not to have
D.not rather had

I love karaoke ; I’m not ___ of a singer , though.
A.proud
B.good
C.much
D.becoming