July 1st of this year is ______ birthday of CPC (中国共产党).A. ninety B. the ninety C. the ninetieth
Cook the food for __________, and then you can have a delicious meal.
These students ___________ a party on the playground if it __________ tomorrow.
She doesn’t know _____________ next.
I look forward to ___________ America next year with my family.
_________ the afternoon of next Friday, we _________ to plant trees in the mountain.