If you _____ smoke, please go outside because this is a non-smoking office.
| A．must | B．should | C．can | D．may |
They all wanted to stop working because they were tired, but ___of them would say sl.
| A．any | B．some | C．none | D．neither |
________Hard you may try, you can’t possibly persuade Tom to give up smoking, for he is so addicted to it.
| A．Whatever | B．However | C．Whichever | D．Whenever |
Every year, Tom remembers to have some flowers ______to her mother on her birthday.
| A．send | B．sent | C．sending | D．being sent |
It’s not easy to learn English well. _______as much as possible is necessary.
| A．Having read | B．Read | C．Reading | D．To have read |
－Peter, would you like a beer to go with your meal?
—Sure, it___________.
| A．ordered | B．was oredred | C．has been ordered | D．has ordered |