【2015·陕西】As the smallest child of his family, Alex is always longing for the time_______he should be able to be independent.
The class __________ 80 students is hard to manage.
You __________ to leave until you __________ your work.
The girl’s face looked pale, so our classroom teacher requested that she ________to hospital immediately.
Not until I began to work ________ how much time I had wasted.
The roads are crowded __________ walking to work is even quicker than driving.