СОС ДАМ 45 БАЛЛОВ We .... back from an excursion. (just COME) They said it ........

Question

СОС ДАМ 45 БАЛЛОВ We .... back from an excursion. (just COME) They said it ..... wonderful. (BE)Now we can understand nature ...... (GOOD)We learnt about ...... environment a lot. (WE)СОС ПОМОГИТЕ ПОЖАЛУЙСТА, ОЧЕНЬ СРОЧНО

Answer 1

We have just come back from an excursion.
They said it was( не очень уверена) wonderful.
Now we can understand nature better.
Не понимаю, что нужно сделать с we.