My mother arrives late _______ work because of the heavy rain.
Millie needs _______healthy.
There is ________ “m” and ________ “u” in the word “much”.
--- Are you willing to live on Mars(火星) one day? It must be amazing!--- It sounds exciting, but it still worries me.
---Why don’t we go out for a walk? The weather is fine and pleasant.--- Let's go.
---Premier Li Keqiang helps more foreign people to know about China’s high-speedrailways on his visit to different countries.--- I heard of it, too. Britain India plans to buy high-speed trains from China.