关于seat的用法When all those present ______ he bagan his lecture.

关于seat的用法When all those present ______ he bagan his lecture. 英语时态：When all those present were seated he began his lecture When all those present(到场者)__ he began his lecture.A.sit B.s When all those present ___he begin his lecture. all those present _______ he began his lecture. When all those present___he began his lecture.(D) When all those present___he began his lecture.A.sit B.set C. 可否能解答关于seat的用法 he r ______ quickly from his seat to welcome his guests He was happy when he saw his birthday present.同义句 He washapp 关于he、 she、 his、 her、在英语里的用法.  Sam really felt very happy.When he arrived at his seat