___________lessons were not difficult.
---Do you want to come with us?---No, I would rather ______ at home than _____ with you.
Dr Yuan Longping grows _____ is called super hybrid rice, _____ has a high output.
There is still much to discuss. We shall, ______, return to this at our next meeting.
The BRICS countries have____ to be a source of global economic development and essential to generations.
His best movie was about the life of Gandhi in India, ______ won several Oscar awards.