(题文)The family had to stay at a hotel________it was raining hard.
A. because B. although C. until D. unless
Every student who ________ in the same group takes part in his birthday party.
A. study B. studies C. are studying D. have studied
You may ________ the book for two weeks.
A. keep B. borrow C. lend D. buy
Excuse me, would you mind your voice down, please?
A. to keep B. keeping C. keep D. kept
—Jane, when did you come here? —In 2010.I ________ here for two years.
A. have been to B. have gone to C. have come D. have been
David suddenly felt nervous.________, it was his first time to go on stage.
A. At least B. After all C. At once D. At all