—You look so tired today.What happened，Jack?
—I didn't go to bed ________ 12 o'clock last night because there was too much homework.
A. until B. though C. after D. beside
Peter is looking forward to ________ his grandparents this winter holiday.
A. visit B. visiting C. visits D. visited
—Do you know ________ the party will begin?
—Maybe in half an hour.
A. how B. where C. when D. what
—Thank you for showing me the way to the bank.
—No problem.I'm ________ to help you.
A. glad B. sad C. hungry D. poor
—What are you doing here，Bob?
—I come here to say ________ to my friend Susan.She will leave here and go home by train.
A. sorry B. OK C. goodbye D. no
—Thanks a lot，Mary.I can't finish it on time ________ your help.
—You're welcome.
A. about B. for C. during D. without
