— Where are the twins? — I think they _____ Hangzhou. They _____ there twice before. |
[ ] |
A. have been to; has gone to B. have gone to; have been C. have been to; have been to D. have gone to; have gone |
1年前1个回答
1年前1个回答
1年前1个回答
1年前1个回答
1年前4个回答
1年前1个回答
你能帮帮他们吗