Ex. 1. Give the Past Indefinite Tense:
I. He can speak English quite well. 2. He is to be at home at 7 o'clock. 3. She has to work at home today. 4. They must be very attentive at the lessons.
Ex. 2. Complete the following sentences according to the models:
Model I: I have missed many lessons and now I have to work very hard.
The results of their experiments were bad, they had to repeat them.
1. He has worked very hard this month, he ... a little now. 2. This substance is very rare, if you want to use it, you . .. before the experiment. 3. They used analytical balances as they . . . very minute quantities. 4. The water is very cold, you ... before drinking it.
Model II: I cannot attend the lecture as I am to be at home at six.
1. Don’t be late, the meeting ... at five sharp. 2. He…his research work by the end of this year, that’s why he is so busy. 3. The temperature ... to 100°C if you want to finish your experiment in time. 4. Don’t you know that she... at three, it will take her an hour to get here.
Ex. 3. Fill in the blanks with “to have to” or “to be to”:
1. I can't go with them as I ... (to be) at the Institute at half past nine. 2. If you want to understand this phenomenon better, you ... (to look through) some articles devoted to this problem. 3. As this question is not solved the meeting .. .1 (to be put off). 4. At ten a.m. he . . . (to make a report), I think it will be interesting to listen to him. 5. As he made many mistakes in his last work he . . . (to rewrite) it
261
377
Ответы на вопрос:
Популярно: Английский язык
-
Катя273126.03.2021 22:21
-
adelgabdrahman21.06.2023 10:14
-
iuliazhdanovaЮлька18.10.2021 08:17
-
lizapolunitska214.12.2020 01:52
-
vztositgicgc24.10.2021 04:28
-
casualsicp20.05.2022 11:14
-
ВеликийЗнаток03.02.2023 00:14
-
karina2426403.01.2023 13:49
-
bbigigitovadakit04.03.2022 04:24
-
niktim2707.01.2022 18:01