__________ out of work for a few months, mother took up the job of waiting on patients in the hospital.
| A．To be | B．Being | C．Having been | D．Having |
—Oh，Tom！You are too late.
—Sorry.How I wish I ______ measures Mr Smith suggested to leave ten minutes earlier.
| A．adopted | B．had adopted |
| C．would adopt | D．could adopt |
—Flight 331______.I’d better be on my way.Goodbye.
—Bye.Happy landing!
| A．was announced | B．is being announced |
| C．has announced | D．is announced |
My daughter often makes a schedule to get herself______of what she is to do in the day.
| A．remind | B．to remind |
| C．reminded | D．reminding |
There are so many books!It is not easy for us to decide what to take and what to______.
| A．take on | B．pick up |
| C．leave behind | D．work out |
A model or an experiment in a science class can help students see things which would ______ remain hidden.
| A．otherwise | B．still | C．thus | D．therefore |