If you sleep short of 7 hours, you are three times________ to catch a cold.
| A．possible | B．certainly | C．probable | D．likely |
He works hard from dawn to night every day to make a living, ________ many people who are struggling to survive in this big modern city.
| A．as if | B．such as | C．so do | D．as do |
________ in color, the garden looks dull in this late fall.
| A．Lack | B．Lacking | C．Lacked | D．To lack |
It was announced that only when the fire was put out _________ to return to their dormitories.
| A．the students would be permitted |
| B．had the students been permitted |
| C．would the students be permitted |
| D．the students had been permitted |
Instead of sand blowing everywhere, there is mud and water everywhere, ________ it difficult to travel from place to place.
| A．making | B．to make |
| C．having made | D．having been made |
The village seemed deserted, the only sign of life ________ some trees waving in the wind.
| A．were | B．was | C．being | D．to be |