21. ______ English quickly, you should pay more attention to listening, reading and speaking.
A. Improving B. Improved C. Improve D. To improve
22. At the dinner we usually _____ soup and____ fruit.
A. begin with; end up with B. begin with; end up at
C. end up with; began with D. end up with; began at
23. The ground is _____with ____ leaves.
A. covering, falling B. covered, falling C. covered, fallen D. covering, fallen
