_______ difficult the task may be, we must finish it on time, because we can’t meet such a precious opportunity _______ we have expected.

Tom rushed out in a hurry, ______ the door ______.

We got here Tuesday afternoon. —________Why didn’t you call us earlier

____ it’s difficult to make her dream cometrue, she never gives up.

－Oh, it’s you, Steve! I ______ you. 　 －No surprising. I’ve just had my hair cut.