Do you mind my smoking here . Look at the sign . It says “No Smoking”.

典例（2017·课标全国卷III）下列各句中，表达得体的一句是（ ）

If you want to speak English well, it’s better to join an English ______.

The up-to-date information together with opportunities for hands-on learning makes theworld _______ in a completely new way .

Sam looks so sad. Let＇s go and ＿＿.