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His invention, … production but it also cut the cost of shoe production by half.

Question 1:

His invention, … production but it also cut the cost of shoe production by half.

A. not only increased

B. not increased only

C. only have increased

These questions are from this test. Would you like to take a practice test?

Practice Quiz 91 | B2 – Upper-Intermediate

30 minutes
30 questions