Let ______________ slide on the snow. [ ]
A. us
B. is
C. was
答案:A
适用于骨牵引的是()。
A.小儿股骨干骨折者
B.急性化脓性关节炎者
C.手术前临时固定患肢时
D.预防骨肿瘤病人发生骨折
E.颈椎骨折伴有神经损伤症状者
— When did it happen?
— ______ the morning of December 25.
A.In
B.On
C./
D.Since