__________ I accept that he is not perfect，I do actually like the person.
| A．While | B．Since | C．Before | D．Unless |
By using ears one can tell the direction ____ a sound comes.
| A．in which | B．from which | C．with which | D．through which |
I don’t believe the reason ____ he has given for not coming to the lecture.
| A．why | B．that | C．how | D．what |
In the forest we observed some trees ____the leaves were black with disease.
| A．where | B．of which | C．in which | D．whose |
I often think of the years ____ I worked with the foreigners, ____ has had a great effect on my later life.
| A．that; which | B．when; which | C．which; that | D．when; who |
He expressed his hope ____ he would visit China again the next year, and this was the very hope ____ he expressed as soon as he arrived in the country.
| A．that; that | B．which; which | C．that; which | D．which; that |