How long was it ______ you finally reached your goal of becoming a doctor—- Five years.

Why are you taking a bag with you— I’m going to buy something. The supermarkets don’t _____ free plastic bags to shoppers to protect the environment.

LiuJialing won ___ Best

Excuse me. Can you tell meIcan get to the post office– Take the subway.

Help _______ to some fruits, boys and girls.