—Do you know the song Come on, Haixi!—Yes, and I _________sing it well.
A. must B. can C. need
Sam spends two hours _______ his homework every day.
| A．to do | B．doing | C．do | D．does |
I want to be a doctor when I _______.
| A．grow up | B．talk about |
| C．get up | D．was born |
Tom was sad because he did _______ in the math exam.
| A．good | B．well |
| C．badly | D．bad |
The ____________man can carry some water every day.
| A．81-years-old | B．81-year old |
| C．81 years old | D．81-year-old |
He is so _________ when he hears the __________news.
| A．excited; exciting | B．excited; excited |
| C．exciting; exciting | D．exciting; exciting |