单项选择题
She （）be ill because I saw her playing basketball just now.
A.can’t B.couldn’t C.mustn’t D.wouldn’t
单项选择题 She（）tosaythatshewasnotinterestedinwhatIwastalkingabout.
单项选择题 IgaveJohnapresentbuthegavemenothing（）.
单项选择题 Aftersayingthat，he（）thedoorquickly.
