One-third of the area ________ covered with trees. About seventy percent of the trees _______ been planted recently.
the bad weather, most of the crops are rotted away.
In ancient times, people rarely travelled long distances and most farmers only travelled the local market.
We looked forward to _______ at eight in the morning, but he didn’t turn _______ until 9 o’clock..
The teacher apologized late.
_____ in a heavy rain, the teacher fell ill and couldn’t but ______ for a leave.