She is ____ in the office now.
A: sit
B: siting
C: sitting
D: sat
A: sit
B: siting
C: sitting
D: sat
举一反三
- Please avoid_______in the sun without any covers A: sitting B: sit C: siting D: sat
- I'm on a train. A: sitting B: siting C: sit D: sits
- Hardly ________ when she ________ someone knocking at the door. A: did she sit, heard B: did she sit, had heard C: had she sat, had heard D: had she sat, heard
- It’s no use ________ here worrying about it. Let’s go to the teacher to give a clear explanation. A: sitting B: sit C: to sit D: sat
- I've never seen the young man__________ next to the doctor. A: sits B: sitting C: sat D: to sit