1.

Tobacco manufacturers are making considerable efforts to gain new clients.

A. Considerable efforts are made by tobacco manufacturers to gain new clients.
B. To gain new clients by tobacco manufacturers to gain new clients.
C. Considerable efforts are being made by tobacco manufacturers to gain new clients .
D. Considerable efforts were being made by tobacco manufacturers to gain new clients.
Answer» D. Considerable efforts were being made by tobacco manufacturers to gain new clients.


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