The complex sentence: relative pronouns and clauses

Ai giỏi anh văn làm ơn giúp mình với
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1.6 The complex sentence: relative pronouns and clauses
Write:
Join these sentences with who(m), which or nothing. (All of them will join with that.)
1 He's the accountant. You recommended him to me. Hes the accountant you recommended ...
2 She's the nurse. I saw her at the hospital.
3 They're the postcards. I sent them from Spain.
4 They're the secretaries. Mr Pym employed them.
5 That's the magazine. I got it for you yesterday.
6 They're the workmen. I paid them for the job.
7 That's the dog! I saw it at the dog show last week.
8 They're the birds. I fed them this morning.
1.6C Who(m)', 'which' or 'that' as the objects of prepositions [> LEG 1.35-36]
Study:
The position of prepositions in relative clauses is very important. We can say:
1 He is the person to whom I wrote. (Never *to who") (very formal)
This is the pan in which I boiled the milk. (very formal)
2 He is the person who(m) I wrote to. This is the pan which I boiled the milk in.
3 However, we usually prefer to omit the relative and say:
He is the person I wrote to. This is the pan I boiled the milk in.
Write:
Join each pair of sentences in three different ways.
1 He's the man. I sent the money to him.
Hes the man to whom I sent the money.
bHe's the man.wholm)I sent the money tob
c Hes the.ma.I sent the oney.to..
2 She's the nurse.I gave the flowers to her.
4 He's the boy. I bought this toy for him.