Flu is a very ______ infectious disease. Fever, headaches, coughing and fatigue are some of its ______ symptoms.

The police set about arresting the suspect ______ they found enough evidence to prove him guilty.

 ---Were you satisfied with the exam result?

---Not a ______. I should have done much ______.

Thanks to the vivid ______, the speaker made the abstract concept accessible to all the audience.

Do you like _______when someone speaks to you without looking at you?

The teacher looked at the student with a smile as if ______ him to answer the question.

______ a truck coming directly from the opposite direction, the car driver turned ______ right to avoid a head-on collision.

The heart is ______ the stomach, for they are both controlled by the brain.

---You couldn't have chosen any gift better for me.

---______.

Our new science teacher comes from either New York or Washington. But I can’t remember _______.