1.EFFICIENT
2.BORROWING
3.SPEAKER
4.ACTIVELY
5.EXPLORATION
6.CONNECTION
7.TRAVELLER
8.ICY
9.DIFFERENT
10.ENDLESS
11.EXPLORER
Is
is
are
am
is
are
are
are
is
are
isn't
isn't
isn't
aren't
am not
123.1)There is... 2)There was.. 3)There were... there are 4)There were.. 5)There is
124.1)is 2)am 3)are 4)am 5)are 6)is 7)am 8)is 9)are 10)am.
1. A dog is AN animal.
2. My sister plays piano beautifully.
3. Tim flies aeroplanes. He is A pilot.
4. Radio <span>was invented by Russian engineer Popov.
5. Wait! THE room is not vacant, </span><span>there are students in there.
6. In the morning Bill received A very </span><span>serious letter from THE boss. Now he is writing A reply letter.
7. I </span><span>took A taxi to THE station.
8. Have you got A camera?
9. What do you </span><span>usually have for dinner?
10. THE earth goes round THE sun.</span>