1. Он должен усердно работать, чтобы закончить свой эксперимент.
2. Я могу посвятить себя научной работе.
3. Вы можете повторить свой эксперимент.
Глагол в такой же форме, как и у инфинитива, если используется с подлежащим во множественном числе, или глагол с "s" на конце, если подлежащее в единственном числе. Например:
He works in a hospital.
They love tea.
<span>1)A: What sport do you like?
B: </span>I'm keen <span>on windsurfing .
2)A: What's your favourite pastime ?
B: </span>I'm fond <span>of painting.
3)A: Do you like team sports?
B: I </span><span>really enjoy them
</span><span>
4) A:Can you play basketball?
B: No, I can't I'm </span>really bad <span>at it.
5) A: Do you like photography?
B: </span>I'm mad about it.
Ответ:
Объяснение:
My sister is a student. Her friends are also students. They live in Moscow. They study English. They usually study in the morning. Their classroom is large. The walls of the classroom are yellow. The students come into classroom. They usually do many exercises, write dictations and study English grammar at lessons.
Four o` clock and forty - five minutes