--What you for your vacation? --I plan to visit my grandparents.
He hurried back home _________ his schoolbag.
When he saw a wallet on the ground, he ________at once.
The train was late, ______ we had to wait for half an hour.
After a long walk, the old man ___________be tired now.
—Which one do you _________, Jim?— I don’t mind. Either will be OK.