Why were you late for school today?—-It was ________ I help catch a thief on the bus

下列各句中加点词语的使用，全都正确的一项是①菜篮子与人民生活休戚相关,所以这项工程必须要努力搞好。②爸爸郑重其事地叮嘱我，一定要把这件事做好。③帮助地方搞好两个文明建设，是人民军队当之无愧的义务。④即使命运摆在你面前的是残羹冷炙,你也要把它当成华堂盛宴吃下去。⑤某消防局来了两位不速之客，他们竟然冠冕堂皇地来推销标价1980元的假冒伪劣消防书籍，当场就被官兵们拿下。⑥建设方言有声数据库,有助于进一步深入挖掘蕴藏于方言土语中的地方文化资源并使其发扬光大。

How much difficulty did you have _______ this problem — _______ .

Learning English means _________ memorizing a huge lot of words．It involves a large amount of reading as well

Be quiet, the head teacher Mr. Gu is coming.— Don’t worry. It _____ be him. Mr. Gu is much fatter.