CHRIS IS MY CLOSE FRIEND. I TRUST ON HIM. HE’S ALWAYS ………… TO HELP...

13/ - BAI TAP TRAC NGHIEM ON THI TOT NGHIEP
BAI TAP TRAC NGHIEM ON THI TOT NGHIEP

13/ Chris is my close friend. I trust on him. He’s always ………… to help me whenever I have a problem.

A. willing

B. responsible

C. available

D. charge