We couldn’t play outside ________ the rain.
A. because B. because of C. because for D. since
Missing the train means ________ for another hour.
A. to wait B. wait C. waiting D. waited
—Susan has bought a large house with a swimming pool.
—It ________ be very expensive. I never dream about it.
A. must B. might C. can’t D. shouldn’t
Dad, I think you should stop ________. It’s bad for your health.
A. smoke B. smoked C. smoking D. to smoke
Nothing can prevent us ________ our aims.
A. reach B. to reach C. from reaching D. reaches
（题文）Mom is making dinner. It _______ so nice.
A. smells B. tastes C. feels D. sounds
