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2.Where has the spaceship gone to（去了）?
3.Has it reached (arrive in/at/on) Marsyet(已经）?
4.Has it come back yet(已经）?
Journey to space/space travel
It has gone to（去了） Mars
Yes.It has already(已经） arrived.
No.it hasn't yet(还没有）
Answer the following question
6.Where has the spaceship with astronauts（
宇航员)in it been to（去过)before（以前）?
7.Has it come back yet(已经）?
It has ever(曾经）been to（去过） the moon
Yes. It hasalready(已经）come back
adv meaning where
ever ( ) ( )
already ( ) ( )
just ( ) ( )
before ( ) ( )
yet ( ) ( )
( ) ( )
常与现在完成时态连用。
曾经 句中
已经 一般肯定句中
刚刚 句中
以前 句末
已经 问句末
还未 否定句末
请根据句意用already或yet填空。
1. The students haven’t finished their homework ______.
2. We have ________ seen this book.