If you can’t understand these sentences, your constant lack of handing in homework ____

oks as if it’s going to rain, but I’m not surewhether the windows are shut in my apartment.—You aswell go back to have a look.

Burns are called first，second or third degree burns，which layers of the skin are burned.

Hurry up! The train _______You know it ________at 8:30 a.m.[ ]

The boy, as well as his friends, _______ watching TV last night.