What do you think of the American singer Lady Gaga’s performance?—Too crazy, but if she ______ come to China to hold concerts, I would buy tickets for her live show.[ ]

Why have you bought so much food —-My good friends ________ to stay with me for the weekend.

The great millionaire gave away all his fortune to the charity and lived a simple life，________.

d phoning her office, but Icouldn’t__________.

_____ him in time, otherwise he would have fallen off the bike.