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 |
In fact, _______ one cause that leads to the problem.
| A．cattle is | B．cattle are | C．cattles are | D．the cattles are |
I found her sitting in the corner, reading _____ newspaper, with _____ in her eyes.
| A．a, tear | B．a piece of, tears | C．a, tears | D．a piece of, tear |
In this factory, suggestions often have to wait for months before they are fully _____.
| A．admitted | B．acknowledged | C．absorbed | D．considered |
After a long walk, they______ pass over the mountain.
| A． could be able to | B．can | C．would | D．were able to |
—I hear Mike refused to tell the truth and was taken away by the police.
---Where did you ____?
| A．pick it up | B．put that up | C．make that up | D．take that up |