Mary ________ to see the films because she __________ it twice.
— Lucy had __________ accident. — But luckily, she wasn’t hurt in _______ event at all.
I love places _____________ the people are very friendly.
---I am sorry to have kept you ___________. ---It doesn't matter. I've just come.
The number of students in our school_________ more than 2000.
At the science museum,the boys and girls get to know__________.