Some of the roads were flooded, ________ made our journey more difficult．

which

it

what

that

We are going to spend the Spring Festival in Guangzhou, ________ live my grandparents and some relatives．

which

that

who

where

________ my sister three times today but her line was always busy．

I’d phoned

I’ve been phoning

I’ve phoned

I was phoning

We’re just trying to reach a point ________ both sides will sit down together and talk．

where

that

when

which

I saw a woman running toward me in the dark．Before I could recognize who she was, she had run back in the direction ________ she had come．

of which

by which

in which

from which

He lived in London for 3 months, during ________ he picked up some English．

this

which

that

when

It was such a serious mistake, ________ caused by carelessness．

which I think was

which I think it was

I think which was

I think which it was

He is a man of great experience, ________ much can be learned．

who

that

from which

from whom

I, ________ your good friend,will try my best to help you out．

who is

who am

that is

what is

________ ,the compass was first invented in China．

It is known to all

It is known that

We all know

As is known to all