Excuse me, I have no ______ on me. Can you _____ the note of 100 yuan ?
It is your own fault you are so tired . You oughtn’t to have stayed up so late .
The president’s speech was boring; it is ,in fact ,rather inspiring and interesting.
Whenever you are to walk on the ice , that it is solid and safe enough.
—Did you have a good sleep last night ? —Yes ,never sleep .
—Tom came to work last Friday ,but no one has seen him since. — he have had an accident ?