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－How was your weekend, Bella?

－Awful! That was the first time I ________ alone at home, bored to death．

has left

had left

has been left

had been left

－The rescue teams are considering ________ they can do for the people ________ from the snow storm．

－So they are．

what; suffering

how; suffering

what; suffered

if; suffered

－Have you got the news about Jack? I haven't seen him for many years,

－He ________ in a company for two years．Now he is a teacher．

worked

has worked

had worked

would work

－Why does the lake smell terrible?

－Because large quantities of water ________．

have polluted

are being polluted

has been polluted

have been polluted

－Can we get the computer before Wednesday?

－________．If it is 30 kilometers, we can make it, but if farther away, it will be on Thursday．

I don't know for sure

Well, that all depends

It's up to you, sir

There's no need to rush

－What does the sign over there read?

－No person ________ smoke or carry a lighted cigarette , cigar or pipe in this area．

will

may

shall

must

－Where did you get to know her?

－It was on the farm ________ we worked．

that

where

there

which

－I’m sorry, but there’s no smoking on this flight．

－Oh, I ________ that．Sorry, I won’t again．

don’t know

didn’t know

won’t know

haven’t known

－It seems that his health is improving．

－Yes．It is ten years ________ he ________．

since; smoked

since; did n' t smoke

that; smoked

before; smoked

－Tom, you are caught late again．

－Oh, ________．

not at all

just my luck

never mind

that's all right