Необходимо переписать приведенные ниже предложения, заменив  выделенные курсивом слова на фразы из списка, которые нужно употребить в правильной форме.

Ответ:

1 Jack's watching yesterday's match on the Internet without downloading it.

  Jack's streaming yesterday's match.

2 I can't access the Internet without using a cable. There's no signal here.

 I can't connect to wi-fi. There's no signal here.

3 I'm a bit bored so I'm looking at various websites on the Internet.

  I'm a bit bored so I'm browsing the Internet.

4 I think you should spend some money on improving your operating system; it's very old.

 I think you should spend some money on upgrading your operating system; it's very old.

5 You should always make sure different devices (laptop, tablet, etc.) contain the same information so you've always got a backup.

 You should always sync your devices (laptop, tablet, etc.) so you've always got a backup.

6 The printer's not working. Oh! It's not connected to the electricity supply.

 The printer's not working. Oh! It's not plugged in.

7 Mia hasn't added new content to her blog on Facebook for a week. I hope she's OK.

Mia hasn't posted an update to her blog on Facebook for a week. I hope she's OK.

8 Sam is always losing files because he often forgets to store information on an electronic device.

 Sam is always losing files because he often forgets to save them.

Объяснение:

Чтобы правильно использовать в предложениях приведенные фразы, нужно знать их перевод:
to upgrade (your system)

to save (a document) - сохранить (документ)

to browse the Internet - просматривать Интернет (сайты в и-нете)

to plug (a device) in - подключать (устройство) к сети

to sync devices - синхронизировать устройства

to post an update - опубликовать обновление

to stream (a video) - транслировать (видео)

to connect to wi-fi - подключиться к  вайфаю

#SPJ1