помогите что надо вставить

(все должно уместиться в 8 предл.). Заранее благодарю!

Simple, Past Continuous, Present Continuous.
1. Why he (to smoke) now? He never (to smoke) before.
2. I (to visit) this country many times since that time.
3. Where (to be) your husband? — He (to be) in the kitchen. He (to come) home ten minutes ago and he (to have) dinner now.
4. As soon sa she (to come) home, she (to understand) thet her children (to sleep).

work, get, fly. Теперь предложения куда надо вставить слова: 1) Maria ......... of her MP3 player when she's at school. 2) Martha and Katie live far from their school, but they ........ on time for class every day. 3) You don't have to .............. part in the school performance if you don't want. 4) Ivan is an excellent student and always.....

speak via the Internet, watch films, send ( inform) and shop. No wonder that people are becoming (addict) to the Internet.They often spend more time communicating online than talking to their real friends and families. At first glance, the virtual world seems to be a very safe place but it's not like that-it can be as ( danger) as a real world because it's created by people. In the virtual reality you can meet nice and honest people as well as evil and (deceit) ones. That's why we should be careful and (select) while searching for information and meeting new people on the Internet. поставьте в правильную форму слова. помогите очень надо..

запуталась!!