He has been studying the environment for over ten years., He _ the environment for over ten years. (study), We have been working hard to build nesting boxes., We _ hard to build nesting boxes. (work), It has been raining for two days., It _ for two days. (rain), He has been donating money to Greenpeace for a long time., He _ money to Greenpeace for a long time. (donate), The government has been trying to reduce pollution for years., The government _ to reduce pollution for years. (try), I have been volunteering to clean out ponds for a year now!, I _ to clean out ponds for a year now! (volunteer)

TASK E

by
I-Print kini
Embed

Leaderboard

We are currently working on improving the Leaderboard functionality. Please help us by offering your feedback.

Paghatag ug Feedback

Visual style

Mga Option

We are currently working on improving the Activity Settings. Please help us by offering your feedback.

Paghatag ug Feedback

I-switch ang template

I-restore ang gi-autosave: ?