Нужно добавить ‘ed’ i play hockey tom plays tennis we help mother we want to come we thank mother he lives in london kate cooks dinner we walk in the park my sisters cry little tom cries we watch tv they like the book we enjoy the party they clean the room ann washes the dishes he skates at the stadium we ski at the stadium they want to help us

Iplayed hockey tom played tennis we helped mother we wanted to come we thanked mother he lived in london kate cooked dinner we walked in the park my sisters cryed little tom cried we watched tv they liked the book we enjoyed the party they cleaned the room ann washed the dishes he skated at the stadium we skied at the stadium they wanted to help us

i played hockey

tom played tennis

we helped mother

we wanted to come

we thanked mother

he lived in london

kate cooked dinner

we walked in the park

my sister cried

we watched tv

they liked the book

we enjoyed the party

they cleaned the room

ann washed the dishes

he skated at the stadium

we skied at the stadium

they wanted to help us

1) to use atomic energy for peaceful purposes is the task of our scientists. (использовать; to use - использовать) 2) having entered the institute he began his scientific work in the students' scientific society. (поступив, после того как он поступил; to enter - поступать) 3) 1. вещества, которые оказывают сопротивление току, называются изоляторами. 1. substances to resist the flow of current are called insulators. 2. переводить древнюю рукопись оказалось трудной . 2. to translate the ancient manuscript was a very difficult task. 4) 1. obtaining this information is hardly possible.  -    b. получение 2. their task was to obtain information.  -    c. получить 3. the mass media enlarged on the event obtaining new information every day.  -  d. получая 4. the information being obtained by us was very urgent.  -  a. получаемая 5) to work with mercury is dangerous. (work - simple active) 6) having finished the experiment they left the laboratory. 7) physics is a science dealing with phenomena connected with the transformation of matter and energy. 8) the proton {having} a positive charge is one of the important particles. the method { proposed} by this young researcher was not acceptable. 9) having done the work the engineer wrote down some new conclusions. выполнив работу, инженер записал несколько новых выводов. 10) this method of examining a machine tool is connected with a new technology. этот метод проверки работы станка связан с новой технологией