14．Travis，________ the research team，is working on the research tasks.
A．in the charge of B．in charge of
C．take charge of D．take the charge of
答案 B [句意：负责研究小组的Travis正在做研究工作。in charge of是“主管”之意，介词短语作后置定语。如果选C，定语从句中的关系代词不能省略，即take前面必须加上who，且take应改为takes。]
15．The parents suggested ________ in the hotel room but their kids were anxious to camp out during the trip.
A．sleep B．to sleep
C．sleeping D．having slept
答案 C [句意：家长建议旅行期间住在宾馆里，而他们的孩子们希望在外面露宿，suggest后面接动名词。]
