選用恰當?shù)倪B接詞填空。
whether, that, what, as if, why, as
1. I'm wondering ____ you are always late  for class.
2. I am not sure ____ he will lend me ahand.
3. My parents are very kind to me and  always let me do ____ I think Ishould.
4. The trouble is ____ I am anxious to  telephone Mr Srmth but I have lost hisnumber.
5. He looked just ____  he had looked ten   years ago.
6. It sounds ____ someone is knocking at  the window.
1. why   2. whether   3. what   4. that   5. as   6. as if
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