The girl is only two years old. She is _______ to go to school.
| A．old enough | B．young enough | C．too old | D．too young |
My sister is only three years old. She can’t take care of _______.
| A．her | B．herself | C．myself | D．yourself |
—Did Alice sleep well last night?
—No, she didn’t. She didn’t go to bed _______ 12 o’clock last night.
| A．after | B．when | C．until | D．if |
—Would you mind _______ in the classroom?
—Sorry, I won’t do that again.
| A．not running | B．don’t run | C．not to run | D．to not run |
—Maria likes singing. Do you often hear her _______ after class?
—Yes, I do.
| A．sing | B．to sing | C．sings | D．sang |