animals are in danger and there will be space for them if we do nothing for them.
________ you meet, please say hello to him or her.
---Could you tell me _____________? ---OK. Guiyang.
The river is very deep. My mother warns me _________ in it.
She hardly ever speaks English because she is afraid ________ mistakes _______grammar.
I don’t know ______ he will be back ______ the Dragon Boat Festival.