1. our customers are from english-speaking countries.
our customers aren't from english-speaking countries.
our customers are from english-speaking countries, aren't they?
2. there was a confidential document in that safe.
there wasn't a confidential document in that safe.
was there a confidential document in that safe?
3. she must know a foreign language in order to be a good secretary.
she must not know a foreign language in order to be a good secretary.
who must know a foreign language in order to be a good secretary?
4. the earth goes round the sun.
the earth doesn't go round the sun.
the earth goes round the sun, doesn't it?
5. alex is getting married next month.
alex isn't getting married next month.
is alex getting married next month?
6. the police stopped me on my way home last night.
the police didn't stop me on my way home last night.
who stopped me on my way home last night?
7. yesterday tom woke up early.
yesterday tom didn't wake up early.
when did tom wake up early?
8. lots of things have happened since i last wrote to you.
lots of things haven't happened since i last wrote to you.
have lots of things happened since i last wrote to you?
9. they'll have business talks tomorrow morning.
they won't have business talks tomorrow morning.
they'll have business talks tomorrow morning, won't they?
Поделитесь своими знаниями, ответьте на вопрос:
1) one day, when he was waiting at a station he noticed a small boy who was playing by the truck.
2) this lovely shawl doesn't belong to me. i have just borrowed it for the party this evening.
3) this time next week you will be crossing the pacific on your way home.
4) they haven't come to cinema tonight, because they were doing their homework at that time.
5) looking out of the window we saw that a large number of policemen were standing around.
6) the train to london leaves at 8a.m. don't you hear?