một cửa hàng chuyên kinh doanh giày dép các loại .sản phẩm dày thể thao nữ hiện đang ưa chuộng với giá mỗi đôimua vào là 270 và bán ra là 310.với giá bán này mỗi năm bán được 600 đôi .nếu bán giảm mỗi đoi 10 ngàn thì lượng dày bán ra trong năm sẽ tăng lên 200 đôi, Vậy cửa hành sẽ bán giá bao nhiêu để lợi nhuận cao nhất
1 You should never press the red button on the telephone.
circumstances
Under … no circumstances should you .. press the red button on the telephone.
2 He didn’t know that Jack had planned a surprise party .
did
Little ……………………Jack had planned a surprise party.
3 Tom is the person who made all this possible.
who
It ………………………………………..all this possible.
4 He seldom goes out at the weekends.
go
Seldom ……………………………..at the weekends.
5 I won’t be at home before Monday.
after
Only ………………………………at home.
6 Why were you late for work today?
that
Why ……………………were late for work today?
7 It is impossible for him to find £50,000 to pay the ransom.
can
On no account ……………… to pay the ransom.
8 You’ll only find a good job if you’re lucky nowadays.
will
Only if ………………… find a good job nowadays.
9 His father cooked the dinner on Thursday night.
who
It ………………………….the dinner on Thursday night.
10 He met his wife while on holiday in Italy.
that
It was while he was …………………. he met his wife.