The father as well as his daughters _____ skating on the freezing river every Sunday afternoon.

The roads have ______ because of people’s dependence on cars.

I feel sorry for myself .If I   more efforts to my studies , I wouldn’t be doing a job with such low wages.
A devoted     B had devoted   C should devote   D were to devote

These students will graduate from college next summer, by which time they    
in college for four years.

Up to now, they _________ a good way to solve that problem.

My brother John wants to work in the factory which _______ still _______.

Will you help me to look for an important paper I left in my office this morning as soon as you _______？

Over the past decades, forest area ______ in China as a result of massive deforestation.

––Who would you rather _____ your graduation ceremony tomorrow, your parents or friends?
––All of them.

The train _______ at the present speed until it reaches Beijing at about 6 :30 am.