1 Does he or his brother swim in the lake?
2 Does he swim or play in the lake?
3 Does he swim in the lake or in the river?
4 Does he swim with his brother or with his friend in the lake?
5 Does he swim well or badly?
There are very many computers in our life now. Almost every family has their own computer. As people say there are more than billion PCs in the world. So, we already can’t live without these clever machines. And I agree with millions users that computers are useful and helpful.
Firstly, we get very much information with the help of computers and the Internet. It is the universal source of various information. And it is more convenient and quick than search for a rare book, or ask a teacher for a piece of advice. Secondly, computer provides you very many services. They help not only to count, but to make films, presentations,your own poems, work with pictures and etc. Thirdly, they help people to communicate. For example, it is more quicker to send letter by e-mail, than to post it as in old times. And, of course , system won’t make any mistakes, and the letter would come to the correct address while a postman can lose the envelope.
But somebody says, if you use a computer , you will do harm to your health, especially to your eyes. Nevethless, I don’t agree with this opinion. There are special rules how to use a computer you should relax regularly and do special exercises for eyes. And if you observe these rules, you won’t have any problems with health.
My friends and I walk and play football. - Если имеется в виду регулярные действия.
My friends and I are walking and playing football. - Если имеется в виду данный промежуток времени (сейчас/в данный момент)
Where did they live?
What did she drink?
where did you go?
when did you get up yesterday?
1 I went there last year.
2 I've never been there.
3 He has already gone.
4 Yes, she left at 4 o'clock.
5 How many times have you been there?
6 I haven't decided yet.
7 It was on the table last night.
8 I've eaten there a few times.
9 What time have they arrived?