He was busy writing a story , only _______ once in a while to smoke a cigarette.
#94052
A
to stop
B
stopping
C
to have stopped
D
having stopped
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Though______money, his parents managed to send him to university
#90752
A
lacked
B
lacking of
C
lacking
D
lacked in
 As the mid- examination is coming , the students are busy ____ it.
#95294
A
preparing
B
prepare for
C
prepare
D
prepareing for