A. at; on B. at; in C. at; with D. in; at
单项选择题— Peter, where did you guys go for the summer vacation— We ()working for months,so we went to the beach to relax ourselves.
A.were B.have been C.had been D.will be
单项选择题Thousands of foreigners were ()to the Shanghai World Expo the day it opened.
A.attended B.attained C.attracted D.attached
单项选择题— I haven't got the reference book yet.but I'll have a test on the subject next month.— Don't worry.You ()have it by Friday.
A.could B.shall C.must D.may
单项选择题The visitors here are greatly impressed by the fact that ()people from all walks of life are working hard for ()new Jiangsu.
A.不填;a B.不填;the C.the;a D.the;the