I’m glad you’ve made great progress so far. Keep it up______ you must be successful.

 Shall Mary come to the concert with us？－Not       she has finished her paper．

_____ we have enough evidence, we can’t win the case.

When a disaster occurs, all people, ________ they are old or young, rich or poor, try their best to help those in need.

I couldn’t help feeling great        I put on the parachute and was pulled off the beach.