Every boy and every girl as well as some teachers who ___ to visit the museum _____required to be at the bus station at 6:30.
By the time you have finished this book, your meal __________ cold.
-Do you think that housing price will keep __________ in the years to come?-Sorry, I have no idea.
If you want to avoid the risks of passive smoking, you can ask the smoker not to __________ in front of you.
Although she is pretending hard to be young, grey hair and the lines on her face __________.
When asked to explain __________ he did to make his students so fascinated with his lessons, the teacher paused and thought deeply.