Complete the second sentence so that it means the same as the sentence before

complete the second sentence so that it means the same as the sentence before:
1we are going to plant a lot ò trees in the park
2he enteres the restaurant.He were served
3 I don't have enough money,so I can't buy this car
4 Tom will service our computer tomorrow
5 They were tired.However,they tried to finish their work on time
6 His room is untidy,so his mother isn't happy