The growing speed of a plant is influenced by a number of factors, _______ are beyond our control.
| A．most of them | B．most of which | C．most of what | D．most of that |
I have bought two ball pens ,______ writes well.
| A．none of them | B．neither of them | C．neither of which | D．none of which |
I have many foreign friends, some are businessmen.
| A．of them | B．from which | C．who of | D．of whom |
The radio club in our school, _______ used to be poorly run, is now very popular among students.
| A．that | B．which | C．what | D．where |
It was an exciting moment for these fans this year, _____ for the first time in years they saw their favorite singers.
| A．that | B．which | C．when | D．while |
The company was willing to provide us with what we needed, _____ made us excited.
| A．what | B．it | C．which | D．that |
The worsening of global warming, _____human activities are to blame, has led to frequently extreme weather.
| A．by which | B．for which | C．that | D．what |
Jason will never forget about his 18th birthday, saw his being admitted to Harvard.
| A．when | B．which | C．that | D．it |
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