—The woman biologist stayed in Africa studying wild animals for 13 years before she returned.—Oh, dear! She _______ a lot of difficulties!
Great changes _______ in this city over the past five years.
If you see Jack please give my __________ to him for not having written to him.
Do you think the plan _________ out as soon as possible?
—Why do you eat so little? —I’m _______ a diet to reduce some weight.
Some policemen should be sent to _______ them _______ the animals.