What has sometimes caused plants to die out in the past?
A.Variations in climate.
B.The introduction of new types of plants.
C.The absence of wooded land.
D.Interference from the foresters.

The peasant’s wife , who have been married for four times, has just had her third baby.
A.who
B.have been
C.times
D.third baby

It was suggested that Tom studied the document more thoroughly before attempting to pass the exam.
A.was
B.studied
C.thoroughly
D.attempting to

After driving a car for ten miles, John suddenly realized that he has been driving in the wrong direction.
A.driving
B.suddenly realized
C.has been
D.direction

It was hard not to start laughing when she started to sing
A.It was easy to keep a straight face when she started to sing
B.It was hard to keep a straight face when she started to sing
C.Start laughing was not hard when she started to sing
D.It was not difficult to start laughing when she started to sing

The words “held back” in 1st paragraph means “______”.
A.forced to study in lower classes
B.prevented from advancing
C.made to lag behind in study
D.made to remain in the same classes

The author’s purpose of writing this passage is to ______.
A.recommend pair work and group work classroom activities
B.emphasize the importance of appropriate formal classroom teaching
C.offer advice on the proper use of the school library
D.argue for teaching bright and not-so-bright pupils in the same class

The author argues that a teacher’s chief concern should be the development of the pupils’ _____.
A.total personality
B.intellectual abilities
C.personal and social skills
D.learning ability and communicative skills

Which of the following is NOT mentioned in the passage?
A.Group work gives pupils the opportunity to learn to work together with others.
B.Pupils also learn to develop their reasoning ability.
C.Pupils also learn how to participate in teaching activities.
D.Group work provides the pupils with the opportunity to learn to be capable organizers.

________________ (55)
A.capable
B.effective
C.formal
D.skillful