It’s quite normal to ten percent of the cost of a building for a period of six months or so, in case faults are found in it.
| A．keep up | B． keep away | C．keep off | D．keep back |
_____ the lack of workforce in many industries, workers are now commanding higher salaries than they used to be.
| A．Regardless of | B．Due to | C．In case of | D．According to |
No decision about any future plan until we have done a thorough research of the teachers’ preference.
| A．has been made | B．is made | C．is being made | D．will be made |
As five children under 10 got drowned in a southern province, it is not socially _____ for
parents to leave children unattended at that age.
| A．acceptable | B．affordable | C．sustainable | D．believable |
Google is testing a new television programming search service, _____ users to find shows videos from websites like Youtube.
| A．having allowed | B．allowing | C．to allow | D．allowed |
It is only after my father was long gone _____ understand his deep love for me.
| A．I could | B．could I | C．that I could | D．when I could |