American women usually consider their best friend as someone ________ they can talk frequently.
| A．who | B．whom | C．about which | D．with whom |
___ of students in our class are from peasant families.
| A．Third fourths | B．Three fourth | C．Three fourths | D．Three four |
Do you mind ___ here?
| A．my smoking | B．to smoke | C．for my smoke | D．for me to smoke |
I can still remember ___ for the first time by the teacher when I was in Grade One.
| A．being praised | B．praising | C．having praised | D．to be praised |
His article is good ___ some spelling mistakes.
| A．except that | B．except | C．except for | D．besides |
It’s a bad habit to sleep with all the windows ___.
| A．close | B．closed | C．closing | D．to close |