1. Where ________ (you/ go) three days ago? - I ________ (be) at home. 2. Yesterday, when we ________ (watch) TV, the electricity ________ (go) out. 3. At this time last night, he ________ (play) computer games. 4. Are you interested in ________ (donate) food for people in this rural area? 5. At 8 pm yesterday, I ________ (read) books while my sister ________ (draw) a picture. 6. He ________ (teach) English for orphans twice a week.

$\text{1.}$ did you go

→ Thì QKĐ - three days ago 

→ Did + S + V-inf + ... ? 

$\text{2.}$ watched - went 

→ Thì QKĐ - yesterday 

→ S + Ved/cột 2 + ... 

$\text{3.}$ was playing 

→ Thì QKTD - at this time last night 

→ S + was/were + V-ing + ... 

$\text{4.}$donating

→ be interested in + N/V-ing 

$\text{5.}$was reading / was drawing

→ Thì QKTD - at 8pm yesterday , while

→ S + was/were + V-ing + while + S + was/were + V-ing 

$\text{6.}$has taught

→ Thì HTHT - for orphans twice a week ( for + khoảng thời gian ) 

→ S + has/have + Vpp + ... 

$\text{#Keisha}$