The possibility____ pleasant smells might reduce pain has recently been suggested by new research.
| A．which | B．why | C．that | D．whether |
He admitted ____________ in the examination .
| A．to cheat | B．cheat |
| C．cheating | D．cheated |
Tim ,don’t ______________ the fire or you will get burnt .
| A．get to | B．get close to |
| C．belong to | D．go to |
Doctors and nurses tried their best to make the patient feel _________ .
| A．at ease | B．with ease |
C．for ease | D． at peace |
He turned his back __________ me and refused to lend me any money when I lost my job .
| A．in | B． to | C． of | D．about |
__________ the course very difficult , she decided to move to a lower level .
| A．Find | B．Finding | C．To find | D．Found |