(届安徽省合肥市高三第二次模拟考试)— Did you go to the lecture by the visiting professor?— No. I ______ it, but I've been busy taking care of my grandma in hospital these days.
— David has made some mistakes in the test. —________ , and ________ .
—Would you mind if I used your dictionary for a while? —_________
America is a country ________many different nationalities as well as one with foreign immigrants _______ the majority of its population.
Teenagers ______ social experience, so they are easily ______ when they first step into society.
Generally speaking, when _____ according to the directions, the medicine has no side effect.