They also have a camera ______allows you to take and share photos and video.A、whichB、w

一Have you got a camera？一No．I should buy________．A.itB.oneC.thatD.this

They also warn that these countries are among the most _________ to climate change.Ala

The upper class is also called the out－of－sight class because______.A．they don" t communic

They must have been enjoying themselves there, or they______so long.A．can"t have stayedB．w

Generally，the children stay in the nuclear family _____ they grow up and marry .A.al

When having lessons the students will_______.A.al