---Why does the river smell terrible?
---Because large quantities of water .
| A．have polluted | B．is being polluted | C．has been polluted | D．have been polluted |
When we are young, questions of _______we want to be when we grow up are common.
| A．which | B．who | C．what | D．how |
It will be at least three years _______ we get to meet again.
| A．before | B．after | C．since | D．when |
Could it be in the room _____ we had a talk last night _____ you left your keys?
| A．that; that | B．where; that | C．where; where | D．that; where |
They believe spirit stays with the body for 3 days, _______someone always stays with the dead person.
| A．during this time | B．during which | C．so when | D．during when |
---- What do you think of Andrew?
---- There are some things that are not easy to ______ and his coldness is one.
| A．put aside | B．think of | C．come to terms with | D．get along with |