Ex - 1 Use modal verbs can, may, must in positive or negative forms.
Maybe she will return tonight. - She return tonight.
Don't stand up! - You stand up!
I'm sure they will finish it in a minute. - They finish it in a minute.
Please, do it for me. -
you do it for me?
I'd like to see your children. -
I see your children?
Do your homework! - You
do your homework.
Perhaps she will agree with it. Who knows? - She
agree with it
Don't park your car on bends. It is illegal. - You park your car on b
I want you to tidy the classroom. - You tidy the classroom.
1. We want to be the best. We
practice!​

1. play - pres simp active
2. apply - pres simp active
3. was undertaken - psat simp pass
4. are required - pres simp pass
1. Во всех современных научно-технических исследованиях,
компьютеры и программное обеспечение также играют все более важную роль.
2. Инженеры применяют математику и физику, чтобы найти подходящие
решения проблем или внесения улучшений.
3. Работа над этой гипотезой осуществлялась многими исследователями.
4. При разработке своих проектов, инженеры теперь должны иметь знания в смежных областях науки.

In last letter you ask me,how I went to the concer t my favourite group. Please note ,it was unforgettable!When I and my friend went to ticket on concert,was big turn,but we weren't bad,because we had great mood and we wait for a little.When we get our tickets we went to take sits in a concert holl.Already half an hour music group delayed give presentation. People eagerly wait for concert..But when singer went to stage,I was very happy!All concert we sing a song,dansed and smilled.When concert finish ,we can take autograph to singers.