They are looking forward to ____ all overthe world.

Can you use chopsticks, John—– ________ . I once stayed in China fortwo years.

－_____ do youhave P.E－We have it onWednesday and Friday.

Why are you so anxious? It isn’t your problem ____.[ ]

_____ by a greater demand for green products, the food company has set higher standards to ensure the quality [ ]