—Is there_________water in the glass?—Yes, there is__________.
________ 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
Chinese _________ by Miss Wang three years ago. A. taught B. was taught C. is taught
Where is my raincoat? I think _________ has taken it. A. someone else B. who else C. anyone else