When ________ ,the museum will be open to the public next year.(NMET 2002上海春) A.completed B.completing C.being completed D.to be completed 答案是选A.为什么不能选D

Peter ________ (is) very excited when he heard the news. The Japanese ________ when they say hello and goodbye. turn off the light when you leave,________ ______ When are you going to have the ________ (celebrate) party? When summer comes ,the weather ________(be) hot. The blackboard ________ (clean) when I came in. 八下.同义句：1、I was surprised when I saw UFO.I ________ ________ ________ see the UFO.2、Kate is seven years old and she can't go to school.Kate is ______ ________ _________ go to school.3、I'm sorry to trouble you.I'm sorry _____ _____ yo 1.I taught swinning myself when i was seven.I_________ _________ by ________ when i was seven.2.I’m the nice watch's owner.The nice watch _________ _________ me.3.why not look at the picture?Let's _________ _________ ___________ ________ the pictur The students ________ an English class when the visitors came.were having are havingThe students ________ an English class when the visitors came.were havingare having When is the football m< > 中应填什么 The Spring Festival is the time ________ children receive giftswhile as since when选哪个,谢谢 The children were ________(cheer) when they heard the good news. We were talking when the teacher ________(to go or come into a place) the classroom. I arrived at the airport ________(after/while/when/before))the planehad taken off He ________(mop) up the water on the floor when i went in. When ________ spaceship Shengshou V traveled in space, ________ new-looking 英语冠词When ________ spaceship Shengshou V traveled in space, ________ new-looking earth that Yang Liwei had never seen before appeared before him.A. the; the She went to the m ________ to buy some food. when we ________(live) in the city centre, we ________(get) up late and ________(walk) to school同步学典上的求!