It is reported that large amounts of locusts(蝗虫) _____ in their activity in the north now.
A.is | B.are | C.was | D.were |
相关知识点
推荐套卷
It is reported that large amounts of locusts(蝗虫) _____ in their activity in the north now.
A.is | B.are | C.was | D.were |