I enjoy fresh air so always sleep with the window open ______ it is really cold．
| A．unless | B．when | C．if | D．Since |
The boy likes playing _____ basketball very much.
A. a B. an C. /
Bob often _____ his homework after dinner.
A. does B. do C. doing
Kind people______ some gifts .Now I can_______ to you.
| A．give away ,give they out |
| B．donate ,give up |
| C．give away , give them out |
| D．hand out ,give it away |
I ____ a good idea of collecting money _______up a Hope Primary School.
| A．thought; to set | B．caught; to build |
| C．came up with; to set | D．kept; to start |
—This problem is too difficult. Can you show me _______, George?
—Sure.
| A．what to work out | B．to work it out |
| C．how to work it out | D．to work out it |