5. The washing machine was expensive. _________ they couldn't afford to buy it.

A. Although

B. But

C. Or

D. Therefore

6. I am very proud _________ my school.

A. from

B. at

C. of

D. off

7. New ________ about the COVID-19 will be updated on the Internet every minute.

A. inform

B. information

C. informed

D. informative

8. ________ did she go to the dentist last week? - Because she had a bad toothache.

A. When

B. What

C. Why

D. Who

9. If a disaster ________ in an area, people from the others will offer help.

A. happens

B. will happen

C. would happen

D. happening