The plane flew smoothly ______ in the sky and people spoke ______ of the experienced pilot.

1. A.
   high；high
2. B.
   highly；highly
3. C.
   high；highly
4. D.
   highly；high

The plane flew smoothly ______ in the sky and people spoke ______ of the experienced pilot.

A. high；high      B. highly；highly C. high；highly   D. highly；high

The plane flew smoothly ______ in the sky and people spoke ______ of the experienced pilot.

A. high；high           B. highly；highly    C. high；highly             D. highly；high

The plane flew smoothly ______ in the sky and people spoke ______ of the experienced pilot.

A. high；high           B. highly；highly    C. high；highly             D. highly；high

The plane flew smoothly ______ in the sky and people spoke ______ of the experienced pilot.

A. high；high           B. highly；highly　 C. high；highly             D. highly；high