we can not figure out ____quit a number of insects ,birds ,and animals are dying out .

I ________ believe it __________ I see it with my own eyes.

We had to be patient because it ________ some time ________ we got the full results

ght you were going to call me last night about the plans for the conference.—Sorry, I ______. But Tom and Jane stopped by and stayed until midnight.

Most of the students near______ Arthur was sitting appeared to be taking notes．So Arthur pretended to do the same