Условие:
Choose the correct answer.
Students aren't allowed ... to each other during the test.
to speak
speak
speaking

Choose the correct answer.
Students aren't allowed ... to each other during the test.
to speak
speak
speaking
Правильный ответ: to speak.
Теперь давайте разберем, почему именно этот вариант правильный.
Не нашел нужную задачу?