The robber walked______the street , jumped_____a tall wall and ran away.

I’m sorry I’m late, Mr. Green.—“It doesn’t matter this time, but please come here a little______ next time.” Mr. Green says _______ smile on his face.

Sam is doing some ______ about the ancient Silk Road.

While large numbers of residents in this area _____ the H1N1 flu, very few suffered death.

Could you tell me the_______of making such tasty cakes—Well，I just follow the instructions in the cookbook.