—Are you sure you have to? It’s been very late.—I don’t know ______ if not now.
I don’t understand why more girls ________ to do housework than boys in today’s society. A. asked B. were asked C. are asked
Times magazine says that smart Lego has become one of ________ favorite toys. A. child B. children C. children’s
Last night, thousands of people ________ to see the stars arrive at the ceremony. A. wait B. were waiting C. have waited
Jenny finally got the job because she ________ speak English well. A. might B. must C. could
________ I live in a safe community, I still feel a little worried when I go out at night. A. Although B. Since C. Until]