Question 1 of 16 Score: 0 1. Combine using “which”. The company launched a new app. The app helps students practise English. The company launched a new app who helps students practise English. The company launched a new app which helps students practise English. The company launched a new app whom helps students practise English. The company launched a new app whose helps students practise English. Correct Answer: The company launched a new app which helps students practise English. 2. Change into passive voice. The coach gave the players detailed instructions. The players were gave detailed instructions by the coach. ...