Put the words in brackets into the right forms to complete the sentences.
36. The ……………………of form makes English easy to learn (simple)
37. He has lived in the USA since he was five, and he is ……………………good at English. (reasonable)
38. In Viet Nam, English ……………………schools have been built to create all-English environments for English learners. (immerse)
39. Nowadays, English has become a globe language thanks to its ……………………as a mother tongue in all continents of the world. (establish)
40. New English words are being invented every day all over the world due to the free admission of words from other languages and the easy ……………………of compounds and derivatives. (create)