单项选择题
______, I picked up the phone and rang my sister in Aus...
单项选择题______, I picked up the phone and rang my sister in AustraliA．
We were working （） time to get everything ready for the...
单项选择题We were working （） time to get everything ready for the exhibition.
A. against B. in C. on D. ahead
Modem man is careless when disposing () his garbage. A....
单项选择题Modem man is careless when disposing () his garbage.
A. of B. to C. at D. about
