By serving others, a person focuses on someone other than himself or herself,_____can be very eye-opening and rewarding.
A. who B. which
C. what D. that
She brought with her three friends, none of I had ever met before.
A. them B. who
C. whom D. these
Correct the errors in the following sentences, if .
A． not B． necessary
C． any D． ever
— Do you know __________ they got to know each other?
— It was last year ________ they both taught English in China.
A． when was it that; when B． when it was that; that
C． when it was that; when D． when was it that; that
The world is more forgiving than commonly ______, so we should be optimistic about life.
A. declared B. promoted
C. supposed D. required
It wasn’t until near the end of the letter ______ she mentioned her own plan.
A. where B. that
C. why D. when
