在下列各句的空格内填上一个适当的完整的单词，该词的首字母已给。

1.In autumn the leaves of most trees turn y________.

2.There’s no b________ over the river. We have to cross it by boat.

3.It’s best to water plants either e________ in the morning or late at night.

4.Many children like spending much money in b________ beautiful pencil boxes.

5.Before you come into the room, please k ________ at the door.

在下列各句的空格内填上一个适当的完整的单词，该词的首字母已给。

76. In autumn the leaves of most trees turn y____▲____.

77. There’s no b____▲____ over the river. We have to cross it by boat.

78. It’s best to water plants either e____▲____ in the morning or late at night.

79. Many children like spending much money in b____▲____ beautiful pencil boxes.

80. Before you come into the room, please k ____▲____ at the door.

在下列各句的空格内填上一个适当的完整的单词，该词的首字母已给。
【小题1】In autumn the leaves of most trees turn y________.
【小题2】There’s no b________ over the river. We have to cross it by boat.
【小题3】It’s best to water plants either e________ in the morning or late at night.
【小题4】Many children like spending much money in b________ beautiful pencil boxes.
【小题5】Before you come into the room, please k ________ at the door.