I was watching TV just now. When I heard my mother came into the room, I__________ my book.

When I was watching TV,my mother subbenly came in.

_______ she came into my room, I was just reading a book.

A、While
B、When
C、Before
D、After

I TV when my mother came back home.

I was watching TV, ___my mother was cooking in the kitchen.

A、

while

that

but

then