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It is necessary that ______. (马上把他送到医院).
It is necessary that ______. (马上把他送到医院).
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It is necessary that ______. (马上把他送到医院).
It may be necessary to stop__________________________(每隔…时间) in the learning process and go back to the difficult points in the lessons.
It may be necessary to stop__________________(每隔…时间) in the learning process and go back to the difficult points in the lessons.
Animal experiments will continue to be necessary to resolve existing medical problems________________(尽管一些人公开反对).
We consider __________the instrument be adjusted each time it is used.
A. that it necessary B. it necessary that
C. necessary that D. necessary of it that
A.Selecting the necessary equipment.
B.Finding a climbing partner.
C.Increasing upper-body strength.
D.Discussing popular climbing sites.
A.what
B.whether
C.that
D.when