According to what he said, his father ________ for a very long time．

can be away

could have been away

can have left

could have left

In my opinion, she might probably become a famous artist because she ________ a great interest in art even when she was five．

built

prepared

shown

grown

A sweater made of wool is much more expensive than ________ made of cotton．

one

the one

that

it

It seems that you ________ this report or you can see what I questioned just now．

don’t read

didn’t read

haven’t read

hadn’t read

The police ________ the murder case at present．

is looking up

is looking down

are looking into

are looking out of

He was heard ________ when I passed by his house．

shout

to shout

shouting

shouted

No evidence of life ________ on any of the planets so far．

has discovered

has been discovered

is discovered

was discovered

He can’t ________ come tonight, for he is very busy．

probably

likely

maybe

possibly

My hometown is no longer ________．

what it used to be like

like it used to be

what is used to

what it used to be

It’s good manners ________ your seat to an old person or a little child on the bus．

offer

to offer

offering

to offering