________ if you want to do something, or you won’t be able to do it well.
| A．To try your best | B．Trying you best | C．Try your best | D．Unless you try your best |
— May I help you?
— Yes, I’d like to try on some sports jackets just like ______ I’m wearing.
| A．it | B．one | C．the one | D．that |
Mr. Jones is on time for everything. How ______ it be that he was late for the opening ceremony?
| A．may | B．should | C．can | D．must |
We ______ last night, but we went to the concert instead.
| A．must have studied | B．might study |
| C．should have studied | D．would study |
. — We ______ to put off our school sports meet until next month.
— I ______ that.
| A．have decided; didn’t expect | B．decided; didn’t expect |
| C．have decided; haven’t expected | D．decide; don’t expect |
Her money ______, the lazy middle-aged woman began to steal others’ money at crowded places, such as bus stops, stations, airports and ports.
| A．had run out | B．running out |
| C．having been run out | D．ran out |