شکل صحیح فعل داخل پرانتز یا حرف اضافه مناسب را در جای خالی قرار دهید:

1. As a front-end lead, I spend a lot of time ____________ (review) the team’s Pull Requests.

2. Learning Next.js App Router is not easy. It takes time ____________ (master) the new concepts like RSC.

3. The users get frustrated ____________ the checkout process is too complicated.

4. I think we made a mistake in ____________ (implement) the Affiliate system without a 30-day cookie.

5. If you want to get better ____________ (speak) English on camera, you need to practice every day.

6. We are currently looking ____________ a reliable payment gateway for our new LMS.