Animals like frogs (A) have waterproof skin (B) that prevents (C) it from drying out quickly in air, sun or (D) wind.
A.have 
B.that 
C.it
D.wind

_________ (26)
A.in
B.to
C.on
D.with

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
When he _______ us to go in, we _______ outside the exam room for over half an hour.
A.let – are standing
B.let – have stood
C.let – had been standing
D.let – have been standing

Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.
The Prime Minister is to consider changes to sexually discrimination laws to enforce equal opportunities.
A.is
B.to
C.discrimination 
D.enforce

When you do something, you should_______
A.get through to
B.turn over a new leaf
C.weigh up the pros and cons
D.go down well with

Second, you should not keep the water on in a long time.
A.second
B.keep
C.the
D.in a long time

He makes a better husband than father.
A.His father is better than her husband.
B.Fathers are usually good husbands
C.He is more successful as a husband than as a father.
D.He tries to be a good husband than father.

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.
The substance is very toxic. Protective clothing must be worn at all times.
A.Since the substance is very toxic, so protective clothing must be worn at all times.
B.So toxic is the substance that protective clothing must be worn at all times.
C.The substance is such toxic that protective clothing must be worn at all times.
D.The substance is too toxic to wear protective clothing at all times.

 I wouldn’t like to become so................... that I couldn’t go out in public.
A.famous
B.infamous
C.famously
D.fame

By tomorrow, the car _____ by me.
A.will have been bought 
B.will be bought    
C.was being bought 
D.was bought