To order tickets for the 2016 Riode Janeiro Olympic Games, just call 00982012. It _______ be simpler.
| A．must | B．could | C．mustn’t | D．couldn’t |
The boy slipped out of the room and headed for the swimming pool without his parents' _____.
| A．command | B．conviction | C．consent | D．compromise |
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 |