Much to my , I’m unable to accept your kind invitation.
| A．fault | B．duty | C．guide | D．regret |
All morning as she waited for the medical report from the doctor, her nervousness _____.
| A．has grown | B．is growing | C．grew | D．had grown |
The silence of the library _____ only by the sound of pages being turned over.
| A．has been broken | B．breaks | C．broke | D．was broken |
With the rapid growth of population, the city _____ in all directions in the past five years.
| A．spreads | B．has spread | C．spread | D．had spread |
- How long _____ at this job ?
- Since 1990.
| A． | were you cmployed | B． | have you been employed |
| C． | had you been employed | D． | will you be employed |
— When will you come to see me, Dad ?
— I will go to see you when you _____ the training course.
| A．will have finished | B．will finish | C．are finishing | D．finish |