下列能够反映多极化趋势的事件有( ) ①近年来,全球经济50%以上的增量来自金砖国家 ②联合国粮食及农业组织向温家宝颁发“农民”奖章 ③第20届非洲联盟首脑会议在埃塞俄比亚举行 ④美韩举行代号为“关键决心”的联合军演
Helen always helps her even though going to school ________ most of her day.
The policeman came up to the house, whose door was open, ________ there for a while, and went in.
—Too noisy outside! I just can’t focus on my study. —______. Let’s go outside and play soccer instead.
To my delight, the students are recycling many things they ______ away in the past.
Sue is always finishing her task well within the shortest time. ______, she performs effectively.