问题:
A、he needed more students to joinB、he didn‘t prepare enough food for the 42 studentsC、he wanted two groups of participants,hungry and non-hungryD、he d...
问题:
A、in stead ofB、exceptC、butD、out of
问题:
A、took upB、took onC、took outD、took off
问题:
A、SimilarlyB、Furthermore C、HoweverD、Therefore
问题:
A、fromB、ofC、aboutD、on
问题:
A、forB、aboutC、onD、from
问题:
A、missingB、missedC、missD、misses
问题:
A、oftenB、lookC、sometimesD、seem
问题:
A、withoutB、byC、fromD、upon
问题:
A、sayingB、sayC、saidD、says
问题:
A、andB、orC、norD、neither
问题:
A、BecauseB、WhereC、AlthoughD、Whatever
问题:
A、Because B、Where C、Although D、Whatever
问题:
A、scientificB、commonC、technicalD、average
问题:
A、admitB、avoidC、assureD、affect