In fact, listening is just as　　　as speaking in language learning.

Why not open the window? It’s too          in the room.

---- Mom , I was the first to reach the top of the mountain .--- Good job, Jack! I 'm ______ of you.

-- What do you think of the 3D film Titanic last night?-- It was _________. I enjoyed it a lot.

We’re happy that our country has developed _____ these years than before.