Techniques for ________ sleep wouldinvol...hat sleep can occur.
举一反三
- Sleep: Jerry gets hours of sleep a night. Sometimes he can sleep for a week and then not sleep for two or three or four days.
- Many summer insomniacs ______. A: can't make up for the sleepless nights B: sleep in the afternoons C: can get extra sleep at night D: can never sleep well
- The problem for the author's summer insomniacs is that they ____________. A: Can't make up for the sleepless nights B: Sleep in the afternoons C: Can have extra sleep at night D: Can never sleep well
- I don't think he ______ now. A: must sleep B: must be sleeping C: can be sleeping D: may sleep
- We can learn from the passage that the writer can have a good sleep ______.