Is Steven still in Hainan for his winter vacation—No, he_____ Hainan three times, he won’t go there again.

The old lady likes to spend time indoors, ____ she can comfortably watch television and read newspapers.

_________ her mother, she became a famous scientist.

We all hope to see the plan that ____ at the beginning of the year carried out next year.

When I miss my family, it’s ______great comfort to have a________ family to be with. A. a; substitute B.a; replace C. /; substitute D./; replace