The playboy was ____ in his allowance as soon as his father knew he had failed all his exams.

I must apologise ________ you so late

Today Bob contradicted Ms. Li, our math teacher, inclass, _____ made her angry with him.

With the help of the Internet, we can get all kinds of information we need.[ ]

Our usual walk is to or from the subway, ______ is how we get to work．