【单选题】
We have had a new computer system（）
A、install
B、installed
C、installing
D、to install
查看正确答案A、A.just have had B、B.just had C、C.have just had D、D.had just had
搜题
更多“We have had a new computer system（）”相关的问题
第3题
A、examined；are not having B、had examined；would not have C、had examined；would not have had D、should examine；would not have
