I like our teachers because they can allow us _________what we think.
--- Would you like to go birdwatching with us? --- .
He will work in this school _______.
The number of the red-crowned cranes will become ____ if we don’t take any action.
---You were out when I went to your house this morning. ---Oh, I _______ for a friend from England at the airport.
He is getting ______ to hear the ____ words.