I don’t know .A what to do it B how to do it C how to do D what should I do
He is so careless that he often _______his school things at home.
--- Was Tom a member of Greener China?---Yes, he has ___ Greener China for 5 years.
The room was very dark, so I couldn’t see anything ______
--- Can you play tennis with us now?--- _____. I have to finish my homework first.
---I think everyone needs the sun.---Yes, it can __ light and heat itself.