单选题 Nowadays, more and more companies ________ WeChat in business communication because of its convenience and high efficiency.

单选题 _______ the chat program, QQ has also developed sub-features like games, pets, ringtone downloads, etc.

单选题 Recently his grandfather has _______ surfing the Internet for health information.

单选题 When people communicate face to face, 60-70 percent of the meaning is ______ the non-verbal cues as gestures and facial expressions.

单选题 Once you hit the send button, you may _____ control of how the message will be interpreted.

单选题 Young people _____ a tendency to share their daily life on social media.

单选题 Which emoji would you _______ as the most useful one in your daily communication?

单选题 In face of the challenge of long distance, we are going to _____ our efforts to fulfill the task by online collaboration.