9. When Carol...........last night, I..........my favorite show on television. * 1 điểm A. was calling- watched B. called- have watched C. called- was watching D. had called- watched

When Carol...........last night, I..........my favorite show on television. * 1 điểm

A. was calling- watched

B. called- have watched

C. called- was watching

D. had called- watched

(chỉ một hành động đang xảy ra thì hành động khcs xen vào 

=> sử dụng thì QKĐ và QKTD)

HỌC TỐT!

@Zịt_siu_ckank