It is definite that new digital mobile phones have less radiation, but that does not mean________that they should be used without caution.
It’s sometimes difficult to tell one twin from _____.
—Has the little girl passed ______ P.E. test? —She has tried twice, and the teacher will allow her to have _____ third try.
—How did you find your visit to Qingdao, Joanna? —_____________.
One side of the board should be painted yellow, and _______ white.
When I went home after work, I found my house ______ but strangely, nothing had been stolen.