—Can you guess if they ________tomorrow? —They will come if they ________free, I think.
I don’t know with this problem.It’s too hard.
(原创)The coat on the bed _______more than 100 yuan.
--- Whose volleyball is it? --- It ________ be Carla’s. She doesn’t like volleyball.
Mum, what are you cooking? It ______ so sweet.
—I want to know if Mary ______ us in the art show tonight. —I believe if she ______ her homework, she will join us.