A
考查介词短语辨析。句意为：我们必须保持房间清洁，因为脏与疾病是密切相关的。hand in hand连在一起；手拉手，符合句意。step by step逐步地；from time to time有时，不时；one after another一个接一个地。
答案： A
(2014·南昌第二中学高三检测)We must keep our room clean，for dirt and di
1个回答
相关问题
-
几道语法题1.We must keep put our room clean.Dirt and disease go _
-
we must keep our classroom clean改被动语态
-
—Must we do something to keep our country clean?—__________.
-
We must do a lot of work to keep our environment clean and t
-
keep our rooms clean
-
Our room must ＿＿clean.
-
we should keep our ( )《river》and ( )《ocean》clean.
-
We must make some r_______ to keep the computer room clean a
-
We must clean the room（对clean the room）
-
We feel _____ our duty to keep our city clean and tidy.