Mom,don’t you think it's OK to play once in a while ____________ it doesn’t affect my studies?
She always goes swimming ________cold it is.
—We'd like you to start work tomorrow if possible. —I'm sorry, but I can't possibly start until Monday.________?
Look out! The train ________.
Do you think exercise can keep us ________?
The teacher asked us ________ in our reports before class.