Directions: Read the following passage. After reading it, you are required to complete the answers that follow the questions in no more than 3 words . Stay Connected with On-air WI-FI WI-FI in the Sky Log in to the Wi-Fi service with your account details. It ’ s totally FREE if you are travelling in First Class or Business Class, or if you are a Gold member or above. Silver members can enjoy up to 50% savings and Blue members save up to 30% in Economy Class, even if you’ve just joined. It’s free to join our club, so join today. If you connect as a guest, you can also enjoy 20 MB free. Price plans will appear on screen. Prices may be different depending on the aircraft or route. Make the Most of the WI-FI Service Due to current technology, the bandwidth ( 带宽 ) to the aircraft is very limited. It works best on smartphones. Here are some useful tips. •Use apps ( 手机应用备件 ) rather than browsers ( 浏览器) •Try to make big photos smaller before sending them. •Turn off background app refresh.