—You see, I’m poor in maths, you are not good at English, and...
— That’s ____ we should help each other.
| A．when | B．where | C．how | D．what |
In the afternoons, I usually stay and study in the classroom until 6:30, _______ most of my classmates have got home.
| A．whose time |
| B．which |
| C．on which |
| D．by which |
Kelly studies many different subjects in high school, _______ English is the most interesting in her opinion.
| A．from which | B．in which | C．which | D．of which |
They are all interested in the newly-built apartments along the river, but _______ really want to buy any yet.
| A．none of them |
| B．none of what |
| C．none of whom |
| D．none of which |
The newly-built house, _______ are painted light green, is really a peaceful place for us, especially after hard work.
| A．the wall of which |
| B．whose walls |
| C．of which walls |
| D．the walls of that |
The growing speed of a plant is influenced by a number of factors, most of _______ are beyond our control.
| A．them |
| B．what |
| C．whom |
| D．which |