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10. This is the first time I
A. have done
11. I have been invited to a wedding
the experiment on plant breeding.
C. would do
14 February.
C. on
В. do
D. did
A. in
В. of
D. at
12. - "You look nice today. I like your new hair style." - ".
A. It's nice of you to say so
C. Oh, well done!
13. They often went to school by bike when they were young.
B. Shall I? Thanks.
D. I feel interesting to hear that.