I was waiting for the bus to take me down from the Janiculum Hill into the city of Roma when I turned
and saw black smoke rising into the sky. It seemed to be coming from my studio, a small, cabin-like study
built up against the ancient Roman wall. I'd arrived there three weeks before with my most important thing:
the first draft (手稿) of my new novel. 
    The smoke? I thought of the electric coil (电热棒) I'd been using to heat water for the endless cups of tea
I need to fuel my writing. What if I had started heating water and forgotten about it? I supposed the coil had
turned over from the cup and started a fire that would not only destroy the studio but also the pages of work
I had spent years on and I could never rewrite. 
    I hurried back, but soon saw that the smoke came from the old leaves and branches in the neighbor's
garden. I felt relieved (轻松的). But since I was now so close, I went into my study to have a look anyway.
    The electric coil was red, and the water I'd meant to use for tea before I left had all boiled out of the cup
that had already turned over and the red-hot coil had toppled (倾斜) onto the desk and was burning the wood.
My pages that might have burnt in a second were only inches away. 
    Drawn by the smoke, I'd come back just in time. "Thank God" I said. Of course, thank my luck.

1. The author was leaving for ______.

A. the Janiculum Hill
B. his cabin-like study
C. the ancient Roman wall
D. the city of Rome

2. We can infer (推断) from the passage that the author ______.

A. drank tea to work well
B. stayed there for months
C. often forgot what he had done
D. wrote a number of books

3. In fact, the smoke the author saw was rising from the ______.

A. author's studio
B. neighbor's garden
C. author's apartment
D. author's kitchen

4. The author was worried about that ______.

A. the electric coil couldn't work
B. his valuable things would be burnt
C. the fire would burn down the neighbor's house
D. his first draft would be burnt.