---It is reported that a Boeing 777-200 plane became lost in communication (失去联系) at midnight __________ the early morning of March 8th.---I was amazed to hear that.
I’d like to go swimming _______ the water is too cold.
I met her _______ a cold winter morning in the street.
Mrs Smith has got _______ instead of getting any better.
--_____________ -- I can’t move the box. Can you help me?
--Could I go skating with you, dad? -- ____. You have to practice piano at home.