It's helpful to put children in a situation ________ they can see themselves differently.
| A．that | B．when | C．which | D．where |
Some scientists think there are _______ 2，000 million flashes of lightning per year.
| A．in short | B．on average | C．as usual | D．in total |
Whenever we are in ______ trouble, we should never lose______ heart.
| A．a; the | B．a; a | C．/; / | D．/; the |
We all know that, __________, the situation will get worse.
| A．not if dealt carefully with |
| B．if not carefully dealt with |
| C．if dealt not carefully with |
| D．not if carefully dealt with |
—Can I join the club, Dad?
—You can when you _____ a bit older.
| A．get | B．will get | C．are getting | D．will have got |
If you are in any doubt as to _____ you should be doing these exercises, consult your doctor.
| A．that | B．which | C．what | D．whether |