Hearing mother’s step, the children pretended ___.
| A．to sleep | B．to be sleeping | C．sleeping | D．being sleeping |
On ____ the accident, he felt frightened.
| A．saw | B．sees | C．seen | D．seeing |
I won’t see the film tonight. I am busy. ____ , it is raining cats and dogs.
| A．somehow | B．however | C．besides | D．as well as |
Computers ____ in offices and homes since 1970s.
| A．have been used | B．had been used | C．was used | D．has been used |
More attention must be paid____ the endangered animals.
| A．protect | B．to protect | C．to protecting | D．protecting |
She doesn’t like the way ___ you speak to her.
| A．to | B．in that | C．how | D．in which |