______some ads can be very useful. [ ]A. Its true B. That"

题型：同步题难度：来源：

______some ads can be very useful.        [     ]
A.  Its true
B.  That"s true
C.  It"s true that
D.  This is true

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举一反三

He found         _  very interesting to have a picnic in the open air.       [     ]
A. it"s
B. it
C. that
D. this

题型：同步题难度：| 查看答案

Tom, _____ your job to wash the dishes. [     ]
A. this is
B. that is
C. it is
D. he is

题型：同步题难度：| 查看答案

The English-Chinese dictionary makes________easier for students to understand the English words.      [     ]
A. this
B. that
C. it
D. its

题型：期末题难度：| 查看答案

_____  is important for everyone ______ enough sleep every night.        [     ]
A. It, to have
B. It, have
C. It, has
D. It, had

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__________ is time __________ home.
A. It, go
B. That, go
C. It, to go
D. That, to go

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