Modal verbs can't, mustn't, needn't - exercise 4
Fill the gaps with negative forms of modal verbs in brackets - cannot (can't), must not (mustn't) or need not (needn't).
This car ___ be expensive. It's five years old. (can)
This car cannot be expensive. (Or: This car can't be expensive.)
You ___ help me. I'll do it myself. (need)
You need not help me. (Or: You needn't help me.)