[单选题] Ten years had elapsed. I found she had ______.

1、[单选题]I have no doubt _________ he will overcome all his difficulties.

• A、which
• B、what
• C、that
• D、if

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2、[单选题]On the side of the hill, there is a _________ which was once the entrance to a gold mine

• A、deep hole in ground
• B、hole deep in ground
• C、deep hole in the ground
• D、deep in the ground hole

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3、[单选题]I'm sure clean, ___________?

• A、am I
• B、isn't I
• C、aren't I
• D、am not

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4、[单选题]This missile is designed so that once _____ nothing can be done to retrieve it.

• A、fired
• B、being fired
• C、they fired
• D、having fired

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5、[单选题]I _______ to him because he phoned me shortly afterwards.

• A、need have written
• B、needn't have written
• C、must have written
• D、may have written

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