Look! The girl___________ red is helping an old man cross the road．（ ）
A．ofB．onC．in
一 I wonder if this glass is Tom's.
一 It ________ be his.His was broken just now.
A．mustn'tB．may notC．can'tD．shouldn't
Over the past few months，Chinese COVID vaccines （疫苗） ________ in many other countries.
A．have arrivedB．arrived
C．will arriveD．had arrived
一 Which dress do you prefer，the red one or the green one？
一 ________ .I like blue.
A．AnyB．EitherC．NeitherD．Both
France is ________ European country，and I visited ________ country three years ago.
A．an；theB．a；theC．an；aD．the；the
﹣﹣﹣Yuan Longping is a hero_______ is known for developing hybrid rice（杂交水稻）.
﹣﹣﹣Yes.He is a great man.（ ）
A．whichB．whomC．whatD．that