1 . Children   can get close to ________nature by taking part in ________series of outdoor activities.

A．the；/

B．the；a

C．/；the

D．/；a

2 . In most western countries, on April Fool’s Day, people often play __ ___ trick on each other; children especially have great ______ fun.

A．a; a

B．the; the

C．/; a

D．a; /