2. You should visit this part of the country when __________.
A) spring will come
B) spring comes
C) It has been spring
D) It will be spring
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3. You needn’t hurry her. She ___ it by the time you are ready.
A) will have been finishing
B) would finish
C) will have finished
D) will be finishing
4. We can go home when the ground _______.
A) is drying
B) has dried
C) dried
D) will dry
5. Obviously, he ___ a bad cold. He sneezes so often.
A) has
B) has been
C) had
D) was
6. Darwin proved that natural selection ___ the chief factor in the development ofspecies.
A) has been
B) had been
C) is
D) was
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