153.It’s necessary for people ______ some knowledge of first aid.
A: knows
B: know
C: to know
D: knowing
A: knows
B: know
C: to know
D: knowing
举一反三
- No one except Jack and Tom ___ the answer. A: are knows B: is knowing C: knows D: know
- No one, except his two best friends, _______where he is. A: know B: knows C: to know D: knowing
- Neither the clerks nor the manager (know) _____ anything about the accident now. A: know B: knows C: known D: knowing
- There’s ______ when we shall meet again. A: not know B: not to know C: no knowing D: D. never knowing
- No one but her parents ___________ it. A: know B: knows C: is knowing D: has known