1. I started chatting regularly about two months later, and now I chat on the Internet ____________（每天）.
2. Don’t waste your time _________________（犹豫）over the two desirable jobs, or you will get neither in the end.
3. When he is faced with a ________________（困境）, he usually makes a decision by throwing a coin.
4. So _______________（投入）was the writer in the writing that he forgot to answer the phone call.
