Подставить в правильной форме слова вместо скобок (напимер "am" "is" "are"), используя Present Simple:
1) You'll phone me before you (to go) away, won't you?
2. I'll come to London after they (to find) some place for us to stay at.
3. We'll work till it (to get) absolutely dark.
4. Students won't get financial rewards unless they (to get) high grades.
5. What will you do when summer (to come)?
6. If he not (to come) we'll have a problem.