Jack invited me to play ______badminton with him this afternoon, but I' m not available.
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Bom in a poor family______, he is now a successful businessman and has donated a lot of money to his hometown.
A. in the 1980s
B. in 1980s
C. in the 1980
D. in 1980's
Little John has______cold so his best friend is going to visit him after school.
A. the
B. /
C. a
D. an
Only ______of the class failed the final exam last term, which means the new teaching method is effective.
A. one tenth
B. one ten
C. first ten
D. first tenth
Mike is a kind-hearted person and he often goes to the charity house to look after _____disabled there.
A. /
B. the
C. an
D. a