He ______ his sister to give up the plan for cycling along the Mekong River, but failed. 

—Did you sleep well last night? — No, the loud noise from the street ______ me awake for hours.

While doubts about the medicine’s safety have____________, interest continues to grow.

3.As the years passed， many occasions―birthdays， awards， graduations ____ with Dad’s flowers. 

 If traffic moves at low speeds, the number of accidents is       .