He got home late ____________ the traffic was heavy.

The meeting began two hours ago and because no decision _______, we will continue our discussion tomorrow

It is required that the student___mobile phones in their school,So seldom____them using one .[ ]

. It’s illegal for anyone under 21 in the USA, the highest drinking age in the world to buy alcohol, and stores or restaurants caughtalcohol to people under the legal age will involvetheir licenses.

Please call me if there is a problem. —- Thanks. I won’t ______ to ask for your help if I feel I need it.