________ you enjoy ________ in the river?

______is now no doubt ________ global warming is a security threat to us all.

Do you go to the cinema to see 3D Titanic last night? — No, I _______ go to the cinema. The tickets are too expensive.

Simon, don’t give up easily. It’s ______________ to lose the chance. –Thanks. Your suggestions are ___________.

The man often works late at night, sometimes _____ 2 am.[ ]