According to the plan, Mr. Black will arrive here on______Tuesday.
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Jack invited me to play ______badminton with him this afternoon, but I' m not available.
A. an
B. a
C. /
D. the
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