I CAN'T USE YOUR PEN, ___ THERE IS NO INK IN IT.A. FOR B. WHEN...

60. - BO DE THI TRAC NGHIEM NGU PHAP TA ON THI 10
BO DE THI TRAC NGHIEM NGU PHAP TA ON THI 10
60. I can't use your pen, ___ there is no ink in it.A. for B. when C. if D. whether