It's difficult to speak Russian
Speaking Russian is difficult
Waiting in line is so boring
It's so boring to wait in line
Talking to people by phone is extremely stressful
It's extremely stressful to talk to people by phone
It's impossible to travel to Europe these days
Travelling to Europe is impossive these days.
Calling him was a bad idea.
It was a bad idea to call him.
It isn't easy to type a long email.
Typing a long email isn't easy.
It's cheaper to use an app.
Using an app is cheaper.
Texting doesn't take much time.
It doesn't take much time to text.
Keeping an organized address book is useful.
It's useful to keep an organized address book.
It's good to speak face-to-face.
Speaking face-to-face is good.
Phoning can take a lot of time.
It can take a lot of time to phone.
Speaking clearly on the phone is important.
It's important speaking clearly on the phone.