8天堂资源在线,国产成人久久av免费高潮,国产精品亚洲综合色区韩国,国产欧美va天堂在线观看视频,xx色综合

Many trees should be planted on the mountains.A. thousand B. thousand of C. thousands D. thousands of 【查看更多】

 

題目列表(包括答案和解析)

Many _____ trees should be planted on the mountains.

[     ]

A. thousand
B. thousand of
C. thousands
D. thousands of

查看答案和解析>>

Many _____ trees should be planted on the mountains.

A. thousand       B. thousand of     C. thousands       D. thousands of

查看答案和解析>>

Many ________ trees should be planted on the mountains.

[　　]

A．thousand
B．thousand of
C．thousands
D．thousands of

查看答案和解析>>

Many          trees should be planted on the mountains．

A．thousand       B．thousand of          C．thousands              D．thousands of

查看答案和解析>>


同步練習冊答案