The red bicycle _____ be Lily’s. She has a blue bicycle.A. mustn’t B. might not C. can’t
Sam spends two hours _______ his homework every day.
I want to be a doctor when I _______.
Tom was sad because he did _______ in the math exam.
The ____________man can carry some water every day.
He is so _________ when he hears the __________news.