UNLESS YOU UNDERSTAND, I ………….. EXPLAIN IT AGAIN TO YOU. A. AM...

7. - DE THI HOC KI II CO MA TRAN VA DAP AN
Lớp 9 Tiếng Anh DE THI HOC KI II CO MA TRAN VA DAP AN

7. Unless you understand, I ………….. explain it again to you.

A. am B. was C.will D. would