chia động từ

Front

When____you_____this skirt?

Back

did you design

Front

My mother_______into the van.

Back

did not crash

Front

Hurry up! The concert _______ (just begin) and we are late.

Back

has just begun

Front

Tom (be) _______ my best friend since we were babies.

Back

has been

Front

Where is your father now? He is in the living room watching TV.

Back

is/ is/ is watching

Front

9:00; my family (watch)___________________TV.

Back

is watching

Front

In summer, I usually (go) __ to the park with friends; in spring, we (have) __________ Tet Holiday; I (be) ______ happy because I (visit) __ my grandparents.

Back

go/ have/ visit

Front

John (do) _____ his homework already.

Back

has done