It is our _________ to look after our parents when they get old．

duty

habit

problem

decision

Our teacher is very kind to us．So we regard her _________ our best friend．

on

to

as

at

I’m not tired．If I were tired, I _________ a rest．

had

would have

will have

have

This book _________ Lucy’s．Look! Her name is on the book cover．

must be

may be

can’t be

mustn’t be

Rose is shy, she always gets ________ when she meet new people．

nervous

tired

happy

sleepy

The children are playing games _________ TV．

instead of watch

instead watching

instead of watching

instead watch

He used to spend a lot of time ________ computer games．

play

to play

playing

plays

They are _________ the dark．

interesting in

afraid

terrified of

sure of

My grandfather ________ us stories when I was young．

was used to tell

is used to telling

used to tell

used to telling

Sixteen-year-olds ________ to drive．

is allowed

are not allowed

allowed

is not allowed