Although you may meet some difficuIties,you should never .
Who can _____that he finished his task alone?
---Would you like to drink? Tea, coffee or milk? ---Oh, kind of drink is OK, thanks.
---Do you mind my opening the window? It’s a bit hot. --- .
---Tom just told me a new way he had thought of new words. --- It’s great. What do you think of it?
Could you tell me the new teaching building will be completed?