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詞形轉換，寫出下列單詞的過去式

warn _________

詞形轉換，寫出下列單詞的過去式

get _________

詞形轉換，寫出下列單詞的過去式

write _________

用所給單詞的適當形式填空

Does your family exchange gifts _________ (on, at) Christmas?

用所給單詞的適當形式填空

They _________ (greet, great) each other with a hug.

用所給單詞的適當形式填空

_________ (On, At)Christmas Eve we put on our new clothes.

用所給單詞的適當形式填空

You'd better put _________ (up, on) this picture in the living room.

用所給單詞的適當形式填空

Many people hurt themselves by ________ (fall) off chairs.

用所給單詞的適當形式填空

Don't use water ________ (put) out kitchen fires.

用所給單詞的適當形式填空

There are two ________ (knife) on the desk.