The conference has been held to discuss the ________of global warming on people’s lives all over the world.
| A．importance | B．effects | C．protection | D．impression |
The shop assistants there were not friendly to me because of ____ .
| A．I was badly dressed | B．the clothes I was having on |
| C．what I was wearing | D．what I dressed |
“How is your tour around the North Lake? Is it beautiful?” “It ____ be, but it is now heavily polluted.”
| A．will | B．should | C．would | D．must |
You had better go at once, ____ you?
| A．shouldn’t | B．wouldn’t | C．hadn’t | D．couldn’t |
Every morning the pupils read the texts ____ in the classroom.
| A．on the top of their voices | B．on the top of their voice |
| C．at the top of their voices | D．at the top of their voice |
The number of people invited ____ fifty, but a number of them ____ absent for different reasons.
| A．were ; was | B．was; was | C．was; were | D．were; were |