A．music B．songs C．melodies D．tunes
A. music
B. songs
C. melodies
D. tunes
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Investment in staff has been motivated.
A. to attract the public's attention.
B. to reduce staff turnover.
C. to solve labor disputes.
D. to show off financial resources.
A．dayB．dailyC．yearD．annually
A. day
B. daily
C. year
D. annually
What kind of institution does the lead researcher work with？
A schoo1．
B. A hospital．
C. An association．
D. A charity．
A．1aterB．afterC．1ateD．ago
A. 1ater
B. after
C. 1ate
D. ago
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