Normal levels of skills ________ speaking.

• A. Like
• B. Although
• C. There
• D. When

Answer: (A)

The idea here is how to introduce examples after a general noun. Using like after skills signals that speaking is one example of the kinds of skills being talked about. It means “Normal levels of skills such as speaking.” Like is common for giving examples in everyday English, though in formal writing you might see such as instead. The other options don’t fit because when introduces time or condition, there/there is used for existence or location, and although signals contrast, requiring a full clause rather than a simple noun phrase.