You'd better stay at school now. Look! The sky is overcast with dark clouds. I'm afraid _____ rain is going to fall.
Don’t give up regardless of difficulty and failure, ________ you’ll never achieve your goals.
--- Have you got any books on English grammar? I’d like to borrow __________. --- Yes, here you are. But you must return it by Friday.
David got a higher grade in the final exam, for, you see, he made______mistakes.
I suggested to my mother that she_______a drawing club after her retirement form teaching.
--- Did you telephone Uncle Sam our plan for the Christmas holidays on his farm? --- Yes, he was happy about our arrival, and he eagerly asked when ______.