All we are required to do ______ record a "weike" where we explain what we think students are puzzled about.
Can you tell me________it was________your cellphone was lost?
________ is known to us all is that the old worker,for ________ life was hard in the past,still works hard in his seventies.
—How did you deal with the order? —I handed it to ________ I think is in charge of sales.
________ the football match will be played depends on the weather.
—We were surprised to hear that the reason ________ she gave for her absence was ________ her mother was ill. —Yes.We saw her mother was at the supermarket that morning.