Montreal, Canada Today were celebrating Buy Nothing Day at our school by holding an Eco-bazaar. We have been working hard on it all week. All the students have brought in a few items from home that are still in good condition. We receive coupons in return for each item. Now we are using the coupons to buy other things. Erica, 15 Birmingham, England We have decided to do simple things on Buy Nothing Day. Weve walked to school instead of taking the bus and weve asked our parents not to go to the supermarket. James, 16 найти в тексте примеры Present Perfect и Present Perfekt Continuous ПОМОГИТЕ ПОЖАЛУЙСТА!!!!!

Present Perfect образуется при помощи вспомогательного глагола have/has + V3 (глагол в третьей форме). В тексте несколько предложений в данном времени:
All the students have brought in a few items from home that are still in good condition.
We have decided to do simple things on Buy Nothing Day. 
Weve walked to school instead of taking the bus and weve asked our parents not to go to the supermarket. 

Present Perfect Continuous образуется при помощи have/has + been + Ving. В тексте одно предложение в данном времени.
We have been working hard on it all week.