A2 Complete the passage with proper words or phrase according to the given Chinese. 根据中文提示，用适当的单词或短语完成短文。
Last week, I bought a new laptop to (1) (与……连接) my home Wi-Fi. At first, it worked perfectly — until one morning, the screen suddenly (2) ______ (静止不动) and turned black. I tried restarting it, but the (3) ______ (软件) update had caused a bug. I opened the (4) ______ (应用程序) store to find fixes, but the download kept (5) ______ (失败) because of a weak network signal. I was annoyed and contacted customer (6) ______ (支持). The chatbot, powered by (7) ______ (人工智能), asked me to unplug, wait, and plug back in and (8) ______ (重复) the same steps I'd already tried. However, it wasn't helpful at all. Finally, a human agent helped me reset the device remotely.

B Choose the proper sentences from the box to complete the conversation. 从方框中选择适当的句子完成对话。
A. Yes, I have charged it for hours, but the screen stayed black.
B. Sometimes dust blocks (阻滞) the connection.
C. A technician will call you within 10 minutes.
D. Hello, I need to complain about the smartwatch I bought yesterday.
E. May I have your order number?
F. Let me connect you to our technical team for further help.