To finish the work in such a short time, all of us ________ like crazy day and night.

I’m glad to hear a new school building has been put up ______ once lay an abandoned cinema.

 Have you got any explanation to the question ___ he came here for last weekend?

The Canadian friends have given us a lot of books, few of _____ a bit difficult for us.

Do take each subject seriously in college and even though       you learn isn’t important for your life, the learning skills you acquire will be something to be cherished forever.