20世纪初期可不可以说in the beginning of 20th centuryat the beginning of 20th century

20世纪初期可不可以说in the beginning of 20th centuryat the beginning of 20th century 可不可以说Whom is the man in white shirt? 可不可以说be work hard be in agreement(赞成）disagreement是 agreement的反义词,可不可以说 be in disagreement? 可不可以说dig the holes? early in the 18th century是译成早在18世纪 还是18世纪初期 请问spent和spend的区别?可不可以说I spend the whole day in my office? 可不可以说 look the very same 生活费可不可以说the living costs? I saw them playing football in the playground 可不可以说 in the playground 是地点状语修饰playing吖 明年即将是马年用英语说可不可以说It will be the year of the horse next year. on the football field 是在足球场上 那么可不可以说 in the football field?还有at the football field 前不着村后不着店 可以说成吗?be in the middle of nowhere today前面可不可以用the可不可以说the today? 放一些盐进去,可不可以说：Put in some salt. 可不可以说join sb.in doing sth.有没有例句? 可以说 in the night be to 是否等于be going to 如I'm going to the park可不可以说成I'm to the park?