A.My sister and I take turns washing my clothes.
B.I often have my clothes washed when my sister is busy.
C.My sister helps me wash my clothes when I am busy.
D.I often have my sister’s clothes washed.

A.She had to repair her bicycle last week.
B.She had her bicycle to repair last week.
C.She had her bicycle repair last week.
D.She had her bicycle repaired last week.

A.I need to clean my shoes.
B.I have to clean my shoes.
C.Cleaning is needed for my shoes.
D.I need to have my shoes cleaned.

A.I need to clean my shoes.
B.I have to clean my shoes.
C.Cleaning is needed for my shoes.
D.I need to have my shoes cleaned.

A.persons
B.controls
C.fingers
D.hands

A.existence
B.problem
C.awareness
D.idea

A.KOH và H2.
B.KOH và O2.
C.K2O và O2.
D.K2O và H2.

A.
B.
C.
D.

A.
B.
C.
D.

A.study deep learning
B.release ultrasound
C.diagnose breast cancer
D.produce medical devices