The trees must _______three times a week.
This area experienced ________heaviest rainfall in month of May。
Students should be encouraged to use Internet as resource。
I don't understand what the engineer means , but I’ve got rough idea of project plan。
—I don’t feel like going out. Why don’t we just stay home and watch TV instead?—_______ You promised to take me out for dinner and to the theatre on my birthday.
In Britain today women __________44% of the workforce, and nearly half the mothers with children are in paid work.