21. Faced up with a tight budget, I had to ______ him about the money he owed me.
A. tackle B. track C. trap D. trick
22. The new international school is quite popular with students from different places conveniently ______ in downtown.
A. locating B. to locate C. being located D. located
23. Having looked at physical activity and academic performance, investigators found that the more children moved, the better their grades were in school, _______ in basic subjects of math, English and reading.
A. particularly B. deliberately C. indirectly D. smartly
24. ---Hi, dear. Your niece’s wedding party is to be held this Sunday evening.
---Sorry. I can’t go then. I’m already ______.
A. submitted B. excused C. committed D. exposed
