Chia đúng dạng từ trong ngoặc

1.if he does his homework, he ( not worry)....... about it
2. if today ( be )......... Sunday, the pupils can go swimming
3. i (take) ...... a walk if the weather were nice
4. we would buy a house if we(have)...... enough money
5.if i ( be not )tired , i would go to the movie with you
6.if i ( not have) ...... class today, i would go shopping