The long absence of rain _______ leads to a serious drought in the southwest of China, which draws the concerns of the whole country.

1. A.
   immediately
2. B.
   accidentally
3. C.
   gradually
4. D.
   undoubtedly

The long absence of rain _______ leads to a serious drought in the southwest of China, which draws the concerns of the whole country.    

 A. immediately      B. accidentally          C. gradually           D. undoubtedly

 The long absence of rain ______ leads to a serious drought in the southwest of China, which draws the concerns of the whole country.

        A. immediately        B. gradually             C. accidentally         D. undoubtedly

The long absence of rain _______ leads to a serious drought in the southwest of China, which draws the concerns of the whole country.