Question

C. Choose the best option.
1. Doctors
many deadly diseases in recent decades.
a) cure
b) are curing
c) have cured
2. In last 100 years scientists
a) have split
b) split
c) are splitting
3. Mary a masters
b) doesn't master
c) isn't mastering
4. Every twelve months, the Earth
a) circles
b) is circling
c) has circled
the atom and discovered DNA.
Spanish, but she can communicate.
the sun.
5. She
help right now.
a) needs
b) is needing c has needed
6. The students
a) have
b) are having c have had
7. Paul
why he is ill.
a) talks
b) is talking
c) has talked
three tests so far this month.
to several doctors about his problem, but nobody knows
8. 1
to become a vet.
a) study
b) am studying c has studied

Answer 1

Ответ:

1. b
2. a
3. c
4. a
5. b
6. a
7. a
8. b

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