Mary made coffee ____ her guestswere finishing their meal.[ ]

It rained heavily in the south, _______ serious flooding in several provinces.

Over the past half century, ________ chemical fertilizers has become very common in farming.

It is often recommended that children _______ chancesto get close to nature.

The programme, “Dad, where are we going” has________ parents and children. –I think so. I can’t wait for the new film.