There is never enough time to do everything, ______ there is always enough time to do the most important thing.
Do you know how much time and effort they devoted___________such a complicated project ?
The government has___________a series of policies and measures to ensure the improvement in living standards.
—Did you read the book Who Stole My Cheese ?—Yes. I___________it twice while in university.
Can you think of some cases___________students know clearly he should listen to the teacher but can’t do that ?
Henry hurried to the library, only to find a notice at the gate, saying “No___________before 12:00 noon”.