4. Choose the right variant (a, b, c or d) to fill in the gaps. 1. The engineers use machine learning algorithms to predict future outcomes and optimize decision-making processes in the upcoming project.
a. will b. are c. have d. had
2. The data had been using advanced statistical techniques before the results were presented to the stakeholders.
a. analyze b. analyzing c. analyzed d. to analyze
3. The engineers have already to use machine learning algorithms in the upcoming project.
a. decide b. deciding c. decided d. to decide
4. During the 1970s, many countries stagflation, a combination of high inflation and slow economic growth.
a. experience b. experienced c. will experience d. have experienced
5. By the end of the decade, quantum computers a reality, allowing for even more powerful computing capabilities.
a. will have become b. became c. will become d.) become
6. In recent years, some developed countries protectionist policies to limit imports and promote domestic industries, which to tensions in international trade relations.
a. have implemented; has led
b. implemented; led
c. had implemented; had led
d. will implement; will lead
7. In the coming years, emerging markets such as China and India increasingly important players in the global economy.
a. become b. became c. will become d. have become
