, Frieden responded, "We don't know."
参考答案: D 答案解析:
165
A.Told B.Tested C.Greeted D.Asked
参考答案: B 答案解析:
264
A.upon B.with C.along D.down
参考答案: B 答案解析:
362
A.return B.stay C.leave D.go
参考答案: A 答案解析:
463
A.no B.some C.any D.great
参考答案: B 答案解析:
560
A.why B.whether C.how D.when
参考答案: A 答案解析:
661
A.passed B.kept C.rolled D.swept
参考答案: C 答案解析:
759
A.traveled B.closed C.spent D.lasted
参考答案: B 答案解析:
857
A.chance B.sign C.news D.hope
参考答案: B 答案解析:
958
A.much B.other C.another D.few
参考答案: C 答案解析:
1055
A.choice B.treatment C.diagnosis D.doubt
参考答案: A 答案解析:
1156
A.number B.spread C.size D.amount
参考答案: D 答案解析:
1254
A.recovering B.learning C.escaping D.suffering
参考答案: B 答案解析:
1352
A.severe B.mild C.physical D.typical
参考答案: B 答案解析:
1453
A.hospital B.school C.work D.home
参考答案: D 答案解析:
1551
A.fever B.cold C.sickness D.flu