Only after the woman had her own child, _____ how difficult it was to be a mother.
| A. did she realize |
B. realized she |
| C. does she realize |
D. she realized |
— You don't look well. Are you ill?
— No, the exam is coming and I _____ reading until midnight.
| A．kept up | B．got up | C．stayed up | D．woke up |
Your mother will be ____ until she hears you are safe.
| A．upset | B．nervous | C．anxious | D．doubtful |
I often heard the song _____ in English.
| A．singing | B．being sung | C．sung | D．sing |
---- Were all the passengers on the bus injured in the accident sent to hospital?
---- No, _____ only the four who got hurt seriously.
| A．there was | B．there were | C．that was | D．it was |
The elderly need special care in winter, as they are_____ to the sudden change of weather.
| A．sensitive | B．sensible | C．positive | D．curious |