jim has been to china twice?

jim has been to china twice? jim has been to （——）European country twice Jim has been there twice and_____. ()Browns have been to China twice. she has been to america twice his father has been to America twice she has been to beijing (twice)提问 对twice提问：sherry has been to Hong Kong twice. His father has been to America twice 对twice提问 his father has been to America twice 对twice 提问 We've been to china twice ,[]to Korea once my father__Shanghai twice.a.has been to b.has been in c.has