Problems - Causes - Solutions

A m... of great c... today is ...

This problem has led to ...., which r.../d... immediate solutions

Answer explanation

This problem has led to ...., which REQUIRES/DEMANDS immediate solutions

The focus of this essay is to s... l... on ... and propose possible solutions

This issue is particularly s... because S + V

Answer explanation

E.g: This issue is particularly severe because it directly contributes to global warming.

Another problem often e... is

The g... of this problem lies ...(Giới từ)

There are s.../m... reasons explaining why + S + V (Nêu đủ 2 đáp án)

The p... c... behind

This t... is a... to a host of reasons

This d... is given rise to by m... factors