题目内容：

1.There I met several people,two of them _________ foreigners.A.being B.were C.are D.had been
2.By the time they get here,we_____the work
A.have finished B.had finished C.will have finished D.will finished

优质解答

1,A.being
two前面是逗号,而two前面没有连词,说明后面的不是一个句子,而是一个独立主格结构,用being；如果two前面是句号,则说明后面的部分是个句子,用were,同时two的首字母要大写T.下面的三个句子均为正确表达,意思相同：
（1）There I met several people.Two of them were foreigners
(2) There I met several people,two of whom were foreigners.
(3) There I met several people,two of them being foreigners
2,C.will have finished
by+将来一个时间点,是句子用将来完成时的标志