er to lose weight, the young lady prefers to ___regularly rather than take expensive weight-losing pills．

Nowadays many women are _____ their late twenties or early thirties when they have their first child.

The whole Chinese people will never forget the day, April 20th, 2013, _______ the big earthquake happened in Ya’an.

No one answered when I phoned this morningWhere were you?— I for teeth in the dental clinic

Hurry up! The sky is covered with black clouds. I’m afraid it ______.