【2015•湖南】Always ________ in mind that your main task is to get this company running smoothly.
| A．to keep | B．to have kept |
| C．keep | D．have kept |
His parents wouldn't let him marry anyone ________ family was poor．
| A．of whom | B．whom | C．of whose | D．whose |
Henry set up a club for football fans, ________ he invited all his friends．
| A．for whom | B．to whom | C．to which | D．from which |
In my old school album there are some pictures of some teachers ______ can’t be found in yours．
| A．which | B．who | C．those | D．they |
Now teenagers like to go to the fast food restaurants, ______ eating doesn’t take much time．
| A．which | B．who | C．what | D．where |
For weeks the street hasn't been cleaned by the cleaners, _____ makes it very dirty．
| A．who | B．which | C．that | D．this |