皮皮学，免费搜题
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【单选题】
—I didn’t see you at the meeting. —I had a bad cold. The doctor asked me in bed. [ ]A.
staying
B.
to stay
C.
stayed
D.
to staying
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皮皮学刷刷变学霸
举一反三
【单选题】One solution to the world's food shortage problem could be found in ______.
A.
foods from non-food materials
B.
foods in plastic tubes
C.
freeze-dried foods
D.
eatable food packages
【单选题】照料者对婴儿的需求应及时给予回应,因为根据埃里克森的观点,婴儿在生命中的第一年所面临的基本冲突是( )
A.
主动对内疚
B.
信任对不信任
C.
自我统一性对角色混乱
D.
自主对羞愧
【单选题】Our physics teacher told us light ______ faster than sound last term. [ ]
A.
travels
B.
travel
C.
traveled
D.
traveling
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