It was foolish of the student to _______ his notes during the important test, and as a result, he got punished.
Grammar mistakes of this kind _____ widely among Chinese students.
You can use a larger plastic bottle, ____ is cut off, ____ as a pot to grow flowers in.
Do you remember the day when you ____ the Party?
I was really anxious about you. You______ home without a word.
I remembered _____ the door before I left the office, but forgot to turn off the lights.