问题

Sam is a very good man. He always tries __________ best to help others.
A:he
B:him
C:his
D:he’s
B:him
C:his
D:he’s
正确答案是:
同类题型
Have you finished your fashion design?—Not yet. I’ll finish it if I ________ ten more minutes.
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Photography can be ______excellent hobby for kids.
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