UNIT 1 I. COMPLETE THE SENTENCES WITH THE PAST TENSES

7. - 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

7. She suddenly remembered that she …… her keys at home.

A. had forgotten

B. has left

C. has forgotten

D. had left