Now you will read phrases from actual news articles. Where you see an indefinite article and a noun, enter the definite article and the noun. And where you see the definite article and a noun underlined, enter the indefinite article and the noun. Watch out for plural forms.
Here are two examples to get you started:
Eine speziell angefertigte Lösung [die Lösung]
Am 3. August berichtete die ZeitschriftNature… [eine Zeitschrift]