D 因为 is 是助动词,learn是动词,助动词与动词之间用to相连
it is necessary for us_both reading and writing
1个回答
相关问题
-
It is necessary for us______ English every morning.A.read B.
-
______,is it necessary for us to form the habit of reading e
-
It is necessary for us _________English well.
-
It is necessary for us not to eat fast
-
It is necessary for us to help each other(同义）
-
it is necessary for us to collect wast rubbish for recyling有
-
Reading is good for us同义句改写It is good for us( )( )
-
英语翻译It is necessary that people both young and old in china
-
It is necessary for us________ good habits in our daily life
-
As we know, ______ is good exercise and it is necessary for