--Jack,you are weak in English.You must work har--Jack,you are weak in English.You must work hard.--I see.I believe I will （ ） learn English well soon.A.can B.could C.be able to D.have to

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--Jack,you are weak in English.You must work har--Jack,you are weak in English.You must work hard.--I see.I believe I will （ ） learn English well soon.A.can B.could C.be able to D.have to

--Jack,you are weak in English.You must work har--Jack,you are weak in English.You must work hard.--I see.I believe I will （ ） learn English well soon.A.can B.could C.be able to D.have to
--Jack,you are weak in English.You must work har
--Jack,you are weak in English.You must work hard.--I see.I believe I will （ ） learn English well soon.A.can B.could C.be able to D.have to

--Jack,you are weak in English.You must work har--Jack,you are weak in English.You must work hard.--I see.I believe I will （ ） learn English well soon.A.can B.could C.be able to D.have to
C
be able to 能,可以

C
望采纳亲正确答案