Oh! There is a snake in front of Jay.–But it seems that he doesn’t ___the danger.

I had thought he would be nervous in this speech competition, but he turned out to be calm.— He_____ quite enough preparation for it. [ ]

you didn’t come to the party lastnight— I _____ , but I suddenly remembered I hadhomework to do.

The young teacher treated the naughty boy kindly, but her patience ________ at last．

ollege students are willing to work in Western China after graduation where, ______, more opportunities of employment are available.