---What does “kg” mean(意思是)?A. 克 B. 千克 C.吨
----Must I leave now? ----No, you _________. There is still some time left. A. mustn’tB. needn’t toC. don’t have to
---- How long __________ the bike? ---- For 2 years. A. have you bought B. have you had C. did you have
They arrived _____ London_____ a cold winter night. A. in, onB. at, on C. at, in
He is ________ to move the heavy box. A. too strongB. strong enoughC. so strong
---You look very cool today , Simon . ---___________________