—Who______ it be that is knocking at the door? —It ______ be Father, but I’m not sure.
-- He was given a free five-day trip to Hainan. -- He _______ it since he has worked so hard.
Can you imagine _______ alone on the lonely island for ten years?
He had dreamed of going there for a long time. But he _______ he would have such an unpleasant experience.
He makes people pleased with _______ by making them first pleased with _______.
He is always helping people without expecting anything _______.