They have _____ most carefully the time andmoney needed to complete the project.

He is ill today, so he stay at home.

Have you ever listened to the song called Gangnam (江南)Style __________is very popular these days–Of course. The dance is so funny.

If you want to visit the museum, Irecommend ___________ there by underground.

Sometimes smiles around the world ______ be false, hiding other feelings like anger, fear or worry.