2. CHOOSE
Fill each gap with the right word. Word bank: a double-edged sword, a grey area, a stumbling block, a vicious circle, cast doubt on, hand in hand, in a nutshell, the tip of the iceberg.
Word bank: a double-edged sword, a grey area, a stumbling block, a vicious circle, cast doubt on, hand in hand, in a nutshell, the tip of the iceberg.
The rule is a double-edged sword.
Cost is a stumbling block.
This is the tip of the iceberg.
Tha grey areaa gray area.
Growth and rainfall go hand in hand.
Poverty ca vicious circlecircle.
in a nutshell, light matters most.
The result cast doubt onn the theory.