Friends are those_____ make you smile, always open their hearts to you and encourage you to succeed.
| A．which | B．what | C．who | D．whom |
We can’t find pets. Please help us find .
A. our, they B. us, them C. our, them
—_______ do you surf the Internet ?
—Once a month.
| A．How soon | B．How old | C．How often | D．How long |
What’s _______ with her bike?
| A．the matter | B．the wrong | C．matter | D．trouble |
—Must I finish my homework now?
—No, you _______.
| A．mustn’t | B．may not | C．needn’t | D．don’t |
Shanghai is one of _______in China.
| A．the big city | B．the bigger cities |
| C．the biggest cities | D．the biggest city |