——Excuse me. Is this book?——No, isn't. My book is here.
A. your; this
B. you; it
C. your; it
D. you; this
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——What shall we do first, Dad?——Let's clean room first and then.
A. our; your
B. our; yours
C. we; your
D. we; yours
I like Mr. Green because he often tells funny stories in class.
A. we
B. us
C. our
D. ours
Choose the best answer to complete each of the following sentences.1. Wang Ping had toi pay his way school because he came from a poor family.
A. through
B. at
C. in
D. from
The grateful girl thaked her teacher from the of her heart.
A. center
B. bottom
C. mind
D. inside