Structure) Their income, if lower than last year's, is

Question

1)Their income, if lower than last year's, is enough for them to live on. 

2)if lower than that of last year, tgeir income is as much as they can live on it. 

3)if lower than that of last year,their is as much as they can live on it. 

4)their income, that is lower tgan last year's,is as much for them as  to live on. 

جواب گزینه 1 است 

من گزینه۴ را انتخاب کردم مشکلش چیه؟ 

آیا قسمت رنگی اشکال دارد؟ 

ممنون! 

Ref:sarasari 96

Answer 1

علت اشتباه بودن گزینه 4 استفاده از that به جای which است:

We can use that instead of who, whom or which in defining relative clauses, but not in non-defining relative clauses:

Her car, which was very old, broke down after just five miles.

Not: Her car, that was very old, broke down after just five miles.

وجود کلمه it در گزینه 2 اضافی است. به این مثال توجه کنید:

John is someone you can count on in times of trouble.

Not: John is someone you can count on him in times of trouble.

در این جا فعل "count on" بر میگرده به John؛ آوردن him اضافی است.

Comments

بسیار متشکرم از توضیحاتتون. مشکلم حل شد. 

خدا خیرتون بده!

---

My pleasure.