9. Can we make this game more difficult? I don’t find it ________enough.
A. challenging
B. easy
C. simple
D. boring
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10. We’ve known each other for just a few months, but it ________years.
A. seems as
B. seems like
C. looks like
D. looks as
1. My sister, ________ (which/who) lives in Canada, is a dancer.
2. Look! There’s the house ________(where/that) I used to live.
3. He went to a disco, ________ (where/which) always gave him a headache.
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