---I’ve told Nancy many times about the meeting, but she still forgot it!
---I understand. Actually, anyone _______ be very forgetful at times.
| A．must | B．should | C．ought to | D．can |
The instant Nate woke up the next morning, he saw a note on the bedside table _____ by his wife_______ “Breakfast is ready. Have a nice day.
| A．left; said | B．leaving; saying | C．left; saying | D．leaving; say |
I’m curious to know ______ it is ______ has made Anne_____ she is today.
| A．what; that; what | B．what; what; who |
| C．that; what; who | D．that; what; who |
Help disabled people whenever you can ______ you will make the world a nicer place to live in.
| A．unless | B．or | C．and | D．but |
___ that may generally reduce the amount of labor needed on construction sites by 90 percent.
| A．So clever the construction robots |
| B．Such construction robots are clever |
| C．So clever are the construction robots |
| D．Such clever construction robots are |
___ most of the earth’s surface is covered by water, fresh water is very rare and precious.
| A．As | B．Although | C．If | D．Once |