Have you ever been to Mount Huangshan, ___________is famous for its pine forests and “sea of clouds”?

I will give the message to him __________hecomes back.

Honey，I’d like togo to South Africa for the World Cup this weekend.—_____Youmust help me with the decoration of the house.

I called you at six last night, but you didn’t pick up.— Oh, I ________ my mom ________ in the kitchen.

I don’t make ________ clear whenand where the parents’ meeting will be held.