99.　　 Having been ill for a long time, so she fell behind her classmates.

98.　 Child as he is, but he knows a lot.

97.　 We must return back to school this afternoon

96.　 He means to come no earlier as that time.

95.　 I am writing to thank you with your kind help.

94.　 I gave you my luggage at a quarter of an hour ago.

93.　 The ice isn’t thick enough for us to skate.

92.　 He was punished because what he had done.

91.　 But we don’t seem to have much time to talk about together.

90.　 She could hardly afford for the medical care.