We must keep our room clean, for dirt and disease go______, you know.

A.hand in hand     B.step by step    C.from time ti time   D.one zfter another

We must keep our room clean, for dirt and disease go______, you know.

A.hand in hand     B.step by step    C.from time ti time   D.one zfter another

We must keep our room clean, for dirt and disease go______, you know.

A.hand in hand     B.step by step    C.from time ti time   D.one zfter another

 We must keep our room clean, for dirt and disease go _______ , you know.

A. hand in hand                                                B. step by step

C. from time to time                                         D. one by one

We must keep our room clean, for dirt and disease go______, you know.

A.hand in hand　　 B.step by step　 C.from time ti time　 D.one zfter another

We must keep our room clean, for dirt and disease go______, you know.

1. A.
   hand in hand
2. B.
   step by step
3. C.
   from time ti time
4. D.
   one zfter another

We must keep our room clean, for dirt and disease go _______, you know.

A. hand in hand    B. step by step    C. from time to time    D. one after another

We must keep our room clean , for dirt and disease go          , you know .

       A．hand in hand   B．step by step     C．from time to time D．one after another