How I wish that I could___________ my ideas in simple and wonderful English when chatting on the net.

It wasproblemthatof the students could workit out.

Obama had responded to Zhou’s suggestion ____ the US dollar was extraordinarily strong and that there was no need to create a new global reserve currency.[ ]

Mr.Li is busy these days. He ___ gets a chance to go to the cinema.

There was a _____ look on his face. He found what the expert said too difficult to understand.[ ]