——Did you stay up very late last night?——No,It was not 10 o’clock yet ____I went to bed.
Whenever we were ___, he is always ready to ___ us some help.
The way ___ you are doing it is completely crazy.
The potato is a plant ____ in places ____ it is too cold to grow some other plants.
The eggs _____ cooked just now is delicious.
At least 450 years ago, corn was____ China.