3. The waiter was ....... rude ....... we didn't leave him a tip.
a. such so – Wrong – we use 'so' with adjectives like 'rude' and 'that' to join these two
clauses together.
b. such that - Wrong – we use 'so' with adjectives like 'rude'.
c. so so – Wrong – we use 'that' to join these two clauses together.
d. so that – Correct – we use 'so' with adjectives and 'that' to join these two
clauses together.