小题1:Tom is a 12-year-old boy. If he has a headache, he should take __________ a day. A． tablet B．1 tablet C．2 tablets D．3 tablets 小题2:The Public Library is closed at __________. A．5:00 p.m. B．9:00 a.m. C．4:00 p.m. D．12:00 a.m. 小题3:Lin and his father want to go to the Hamilton Zoo, they should pay __________. A．$ 15 B．$ 30 C．$ 45 D．$ 10