答案是什么啊42.I saw Bob ______in the library when I was there last night.(A) to read \x05\x05\x05(B) is reading \x05\x05\x05(C) reading\x05\x05\x05(D) was reading

答案是什么啊42.I saw Bob ______in the library when I was there last night.(A) to read \x05\x05\x05(B) is reading \x05\x05\x05(C) reading\x05\x05\x05(D) was reading
答案是什么啊42.I saw Bob ______in the library when I was there last night.
(A) to read \x05\x05\x05(B) is reading \x05\x05\x05(C) reading\x05\x05\x05(D) was reading

答案是什么啊42.I saw Bob ______in the library when I was there last night.(A) to read \x05\x05\x05(B) is reading \x05\x05\x05(C) reading\x05\x05\x05(D) was reading
选C.为过去时态.see sb doing sth ,昨晚我在图书馆的时候看见Bob正在看书.希望我的回答可以解决您的困难,

C