YOU SHOULD SEE A DOCTOR IF YOUR NOSEBLEED...BY AN INJURY, SUCH AS...

Question

15. You should see a doctor if your nosebleed...by an injury, such as a punch.A. caused   B. were causing C. was caused  D. will be caused

Answer

15. You should see a doctor if your nosebleed...by an injury, such as a punch.A. caused   B. were causing C. was caused  D. will be caused

15. You should see a doctor if your nosebleed...by an injury, such as a punch.