选出括号中正确的词

1. My brother said he        ( is; was) doing his homework.

2. Johnny said he        ( can; could) speak Japanese.

3. Mike says he         ( goes; went) to Shangbai last Saturday.

4.Wendy's math teacher said she        ( was;is) a good student.

5. Gina told him that she        ( will; would) visit China the next year.