Chia động từ

1.My mother (just/come)...back home after she (go) shopping
2.Boys(not/know)...how to answers the questions although they think they (be)....easy for boys to give the answers
3.Since then,they (live)...there and (have)...a happy left
4.You (ever/read)...that book?
Yes,I(read)...ít three times 

Lớp 11Tiếng anh