cast iron

noun (uncountable)

Gusseisen das

cast-iron

adjective

1.	[made of cast iron] gusseisern

2.	(fig) [will] eisern [alibi, guarantee] hieb- und stichfest

cast iron

Francese

Spagnolo

Italiano

Complétez la séquence avec la proposition qui convient.

You must whisper … disturb your classmates.
- so as not to
- in order not
- so as to