It was _____back home after the experiments.
| A．not until midnight did he go | B．until midnight that he didn’t go |
| C．not until midnight that he went | D．until midnight when he didn’t go |
— What made Bill so angry?
—____________. His girl friend promised to come at 8:30, but she hasn’t come yet.
| A．Having kept waiting | B．Being kept waiting |
| C．To be kept waiting | D．He was kept waiting |
People Who Moved China, hosted by CCTV, honors the people _______the valuable contributions should be remembered by every Chinese.
| A．whose | B．of whom | C．that | D．of which |
The manager urged older staff ________early retirement and new staff _______ more time for work.
| A．take up; to set aside | B．took up; set aside |
| C．would take up; to lay aside | D．must take up; lay aside |
The monkey suddenly emerged ________ the tree, frightening Lucy into screaming.
| A．from | B．behind | C．from behind | D．on |
21st Century, _____ weekly newspaper, provides us with ______ variety of fresh articles about campus studies and life.
| A．a; a | B．the; the | C．a; / | D．the; / |