You can’t pass the exam ______ you study harder.
—Shall we go fishing at six o'clock tomorrow morning?—______.Will seven o’clock be OK?
–The documentary A Bite Of China II is quite popular around China recently. How do you like it?-- ______.
I really don’t know if she ________ it when she ________.
Mrs. Zhang is devoting all her time and energy ________ a Mum right now.
–Mr Wang, could you tell me how long _________ the magazines? –At most ten days.