Read these sentences and fill in the gaps with 'could', 'can', 'couldn't', 'can't'. 1. Mary tried hard to persuade her friend but she (..................) change her mind. 2. Mike was the only one who (..................) understand me, but now he can’t either. 3. We (..................) choose our opponents. The teams will be matched randomly.
Mary tried hard to persuade her friend but she couldn't change her mind.Mike was the only one who could understand me, but now he can't either.We can't choose our opponents. The teams will be matched randomly.