Today our knowledge of food and what it does for our bodies is far more ________ than that of the old times. [ ]

Have you heard that Tom, along with his parents, _____ to Japan?—Really? No wonder I haven’t seen him these days.

_____________ each class, we often do some exercises.

It was my fault. I ________you about the meeting earlier.

A man needing a heart transplant was told the only heart available is ________ of a sheep.When asked how he was feeling after the operation, he replied “Not B-A-A-A-A-D!”