—I read the 21^st Century Senior 2 Edition every day.

—_____ no wonder that your vocabulary is so large.

---I read the 21st Century Senior 2 Edition every day.
---______ no wonder that your vocabulary is so large.

1. A.
   There is
2. B.
   There will be
3. C.
   It is
4. D.
   There could be

—I read the 21^st Century Senior 2 Edition every day.

   —_____ no wonder that your vocabulary is so large.

A. There is      B. There will be       C. It is       D. There could be

—I read the 21^st Century Senior 2 Edition every day.
—_____ no wonder that your vocabulary is so large.