Fill in the gaps with can/can't.

1. A: Can Helen read well? B: No, she can't. 2. A: Can John skate? B: Yes, he can. 3. A: Can Tom speak French? B: No, he can't. 4. A: Can Sue and Mary play basketball? B: Yes, they can. 5. A: Can Tony and Sam play the guitar? B: No, they can't.