语法与词汇They have taken measures to solve the citys pollution problem, but it may be some time________ the situation improves
语法与词汇We had a party last night
语法与词汇The current crisis should ________ as a warning not to be overconfident in the markets
语法与词汇excuse me, ________?
Yes
语法与词汇He decided it wasnt ________ reading the report as hed been informed of all the changes already
语法与词汇The headquarters of The World Health Organization (WHO) and the World Trade Organization (WTO) arein ________