It took people as well as time to build the pyramid.
— She suggested the number of cars should be limited to stop air pollution. —_______, the idea is not very practical.
—Is there any particular soup you would like to have? —_______ you select is all right with me.
With the aim of getting high marks, most Chinese students were ________ lacking creativity.
__________ you understand the rule, you will have no further difficulty.
—Tony, you must have noticed the student who broke the window. —I’m sorry. I _______ attentively.