Rewrite:
Sailors thought the Titanic was unsinkable (couldn't)
He may go to Cairo and he may visit Zagazig. (either)
Although he is ill, he went to his work(However)
He finished his work .Then, he went to bed. ( as soon as )
It is probable that he will come tomorrow . ( may)
Situations:
1. Your brother is travelling tomorrow. What must you do?
2. You started a new project. Say how much was spent on it.
3. You arranged to travel to Rome next week .
Correct
Sally has been making her homework since seven o'clock
وهل by the time=as soon as بمعنى ان معناها بالعربي (بمجرد ان)
مع خالص شكري