示范答案：
Yes certainly. I think sending text messages is often more convenient. For example, if I am on a bus or train where it’s too noisy, or if I am eating in a restaurant where I do not want to annoy other diners, then I will always send a text message. People often send me a text message, because they know I am teaching during the daytime and I cannot answer my phone. So instead, they send me a text message and I will reply as soon as I am free.
