A machine .......... could monitor efficiency would be very useful. (Whom, that, it, when)

Banquat was held ......... lahore (in, on, at).

They kept us waiting .......... two hours (since, for)

When published in 1989 this book was ......... .... great hostility. (Met with)

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Perindon Ki Dunya Ka Shansha Hon Ma,
K Shaheen Banata Nahi Aashiyana.