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Some so-called climate travelers _______ in one place for a few months and then move on to some other places as the weather changes.

We are now in the age of great changes. Everything sometimes ________ before it is felt.

In recent years the consumption of aspirin _______ enormously in America.
A was increasing    B. has increased    C. had increased    D. will be increasing

---Can I join your club, dad?
---You can when you _______ a bit older.

Because the shop_______, all the T-shirts are sold at half price.

The calculations, had they been done by hand, ______all practical value by the time they were finished.

After school we went to the reading-room to do some reading ,only to be told that it _______.

Barbara is easy to recognize as she’s the only one of the women who ______ evening dress.

-- Did you visit your grandparents yesterday?
--Yes, and when I got there, they _____ in the fields .

----We could have come here much earlier in your car.
----I agree. But it _____.