A notice was ________ in order to remind the students of the changed lecture time.
| A．sent up | B．given up |
| C．set up | D．put up |
Hello.You_____ 68442936. I’m sorry I’m unable to answer your call right now.
| A．reached | B．have reached | C．are reaching | D．had reached |
________ him before, I didn't recognize him.
| A．Having never seen | B．Never seeing | C．Not seeing | D．Having not seen |
As a teacher, I seldom give my students so difficult a problem ________ they can not work out.
| A．that | B．if | C．in order that | D．as |
None of us had expected the middle-aged engineer died ____ his design uncompleted.
| A．from | B．without | C．of | D．with |
______, Obama’s health care reform hasn’t been accepted by all the Americans yet.
| A．As it may sound reasonable | B．Reasonable as it may sound |
| C．As reasonable it may sound | D．Reasonable as may it sound |