. If _____ to look after luggage for someone else, inform the police at once.
| A．asked | B．to ask | C．asking | D．having asked |
As unemployment is very high nowadays , it’s very difficult for people to find work .
| A．the; 不填 | B．the ; a | C．不填；不填 | D．an; the |
Whenever you are to walk on the ice , that it is solid and safe enough.
| A．examine | B．check | C．try | D．make |
—Did you have a good sleep last night ?
—Yes ,never sleep .
| A．badly | B．better | C．worse | D．best |
—I’m entering for the 100—meter race.
— .
| A．Congratulations | B．Enjoy yourself |
| C．Good luck | D．Wonderful |
I don’t think Peter is too young to take care of the pet dog ________.
| A．properly | B．correctly | C．exactly | D．actively |