переведите на русский in chemical tubes have chemical substances

Open the brackets. He (to have) a book. He has a book. He (to have/to have to) translate this text. He has to translate this text. 1. She (to have/to have to) wash the floor in this room. 2. The student (to have/to have to) clean the blackboard. 3.

Задайте вопрос к выделенным словам: 1, We have our practical classes on chemistry in a chemical lab. 2. Victor uses scales for weighing substances. 3. the students record the yield at the end of a reaction 4.

What did have in they Middle Ades Example: Did they have tape-recorders? - No, they didn't. Did they have have ships? - Yes, they did. 1. Did they have televisions? 2. Did they have big castles? 3. Did they have gadens? 4. Did they have books? 5.

Составить 10 предложений PrSimple и 10 предложений PrContinuous (всего 20 на каждое время по 5 положительных и 5 отрицательных) со словами have difficulity, have trouble, have talk, have chat, have conversation, have word with some body, have row,

Определите функции инфинитива в следующих предложениях: 1. The process to convert substances into other substances is very important. 2. There are many reasons to study chemistry. 3. То get salts you have to know some methods of preparing salts. 4.