Bungee jumping is a sport ________ a person makes a vertical jump from a high platform with a rubber cord tied to their ankles so that they bounce.
Oh, I’m not feeling well in the stomach. I _________ so much mushroom this morning.
—Is Pro.Smith giving the speech today?—It__________ be him. He is abroad right now.
My sister met him at Ningbo Grand Theatre yesterday afternoon, so he your lecture.
---Did they have a good time at the party?---Judging by their smiles, they _________ have enjoyed themselves.
That little boy can pick up a tune immediately on the violin; he really has a _____for music.