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He has been working hard ________English * a. on b. in c. at d. for ​
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5 votes
He has been working hard ________English *

a. on
b. in
c. at
d. for

​

User Sergei Rybalkin
by
8.1k points

2 Answers

4 votes
he has been working hard in English. option b
User Angel Naydenov
by
8.2k points
7 votes

Answer:

Option b.on is the correct answer.

User TchiYuan
by
7.8k points
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