Jie Min usually gets up _______.
The plane was late, _________ we has to wait for half an hour.
Tony never spends money on traveling____ he likes staying at home.
________ is not an easy thing for everyone to master a foreign language. A. That B. This C. It
The problem must be __________ discovered next time. A. farther B.far C.further
The doctor was busy _________ on the woman at that time. A. operating B. operated C. to operate