— Look! The girl __________ long hair is building a snowman. Is she Sandy? — It __________ be her. I’m not sure.
The old man was seen _______ in the park at 7:00 a.m. yesterday.
______ a host of the show is really ___________.
--- Where is your mother? --- She has ______ to Sichuan on business. She has ______ there four times recently.
It ____ over 10 years since my grandpa _______.
The food in this shop ______ good and ______ very well.