Question

15. This is the cause
............. the problem,
( Choose the correct preposition)
(A) on
(B) of
(C) off
(D) by
16. He gave
.
smoking
the correct preposition। This is the cause the problem
​

Answer 1

Answer:

ur answer is of

Explanation:

hope it's helpful

Answer 2

b is the right answer to this question.

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