If you keep your attention _______ learning, then you can get good grades in your subjects.
| A．hanged on | B．relied on |
| C．carried on | D．focused on |
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 |
—When can I come for the photos? I need them tomorrow afternoon．
—They_______ be ready by 12：00．
| A．can | B．should | C．might | D．need |