— Has Mary ever visited Tower Bridge?
—Yes. She ______ it two years ago.
| A．visits | B．visited |
| C．has visited | D．was visiting |
—Do you practice how to escape from dangers every term?
—Of course.Our school pays much attention to the of safety.
| A．development | B．importance |
| C．advertisement | D．difference |
Don’t go to school breakfast.It’s a bad habit.
| A．after | B．with | C．without | D．when |
If you study hard, you _______ good grades.
A. get B. got C. will get
Bob didn’t go to bed _______ he finished doing his homework.
A. because B. until C. however
Every year, _______ people come to visit our school.
A. hundreds
B. hundreds of
C. hundred