-How long ( ) you ( ) in Singapore?-For just the weekend.I'l

学习时间:2026-08-15 01:31:20 阅读：7768

-How long ( ) you ( ) in Singapore?-For just the weekend.I'll be back next Monday morning.A.have;stayed B.are;staying C.did;stay D.do;stay写出选择的原因,