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在下面句子的空白處填入一個(gè)最適當(dāng)?shù)脑~，使句子意思完整，語法正確。

Tim, come on! We must find ________ who broke the window.

在下面句子的空白處填入一個(gè)最適當(dāng)?shù)脑~，使句子意思完整，語法正確。

The door is ________, but nobody is in the room.

在下面句子的空白處填入一個(gè)最適當(dāng)?shù)脑~，使句子意思完整，語法正確。

It's polite to ________ at the door before you enter the teachers' office.

在下面句子的空白處填入一個(gè)最適當(dāng)?shù)脑~，使句子意思完整，語法正確。

－Hello, Xiaogang! In which season can you see lots of snow in the northeast of China?

－In ________.

完成下列句子的反意疑問句。

The boy can hardly answer this question, ________?

用所給詞的適當(dāng)形式填空

Could you tell me where tea is ________?(grow)

用適當(dāng)?shù)慕樵~或副詞填空

—What’s the sweater made ________?

—Wool, I think.

用適當(dāng)?shù)慕樵~或副詞填空

My watch is made ________ Sweden.

用適當(dāng)?shù)慕樵~或副詞填空

The work is too hard, so I can’t do it ________ myself.

用適當(dāng)?shù)慕樵~或副詞填空

Stamps are used ________ sending letters．