The matter __________ to our study requires __________ with carefully.
— It's a long time since my mother worked here in the car factory. — _____?
The managers discussed the plan that they would like to see _____ next year.
Don't scold him; even an experienced engineer _____ make such a mistake after all.
A survey of the opinions of scientists _____ that three hours of outdoor exercise a week _____ good for our health.
It was last year _____ I visited the museum _____ you had visited.