Direction :- For items
answer for each question
21 .If the temperatures
,the polar icecaps will melt.
A. rises
B. rise
C. risen
D. rising
22. Scientists
A. is working
23. If we
A. act
C. acting
for years to find a solution to global warming.
D. were working
B. works C. have been working
now, we can reduce the impact of climate change.
B. acted
D, have acted
24. Global warming is one of the
issues we face today.
A. big
B. bigger C biggest
D. more big
25. Farmers
more trees.
A. need to plant
B. need planted
A. on
B, in
B whom
26. Biotechnology has a significant impact
27. Students benefit from IT resources
A,. so
28. While the teacher
A. was explaing
29. The software
B. because
they can access information a
D.or
the students were taking notes.
B. explained C. explains
D. is explain
C. whose
D. who
the learners use is very effective.
C. need plant D. need plants
agriculture.
C. at
C. but
D. with
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