UNIT 1 I. COMPLETE THE SENTENCES WITH THE PAST TENSES

3. - BT TRAC NGHIEM LOP 12 CB UNIT1 234 TEST YOURSELF A CO DA
BT TRAC NGHIEM LOP 12 CB UNIT1 234 TEST YOURSELF A CO DA

3. Helen ….. her keys in the office so she had to wait until her husband …… home.

A. has left / comes B. left / had come

C. had left/ came

D. had left / would come