Why didn’t you go to yesterday’smeeting—I would have but I ______ too busyworking on the important experiment

The girl was very sad, and she seemed _____ the fact that she didn’t pass the exam.[ ]

I failed again，but my parents encouraged me and told me that failure________the mother of success.

The most delicious bread in the world ______ by MomPlease wait an hour to enjoy it

He was driving home on the highway lastnight when he was stopped by a policeman， .