It looked as if time hadn't had any effect on him: he ________ so healthy and active.

1. A.
   remained
2. B.
   was remained
3. C.
   was remaining
4. D.
   had remained

It looked as if time hadn't had any effect on him: he ________ so healthy and active.

[　　]

It looked as if time hadn't had any effect on him: he ________ so healthy and active.

　　A. remained　　　　　　　　　　　B. was remained

　　C. was remaining　　　　　　　　　D. had remained

　　A. remained　　　　　　　　　　　B. was remained

　　C. was remaining　　　　　　　　　D. had remained

It looked as if time hadn’t had any effect on him: he　　   so healthy and active.

A. remained　　　　　　　　　　　　　　 B. was remained

C. was remaining　　　　　　　　　　　　 D. had remained