Nobody here can tell our teacher will criticize（批评） us or not.
| A．if | B．whether | C．that | D．what |
Mary Smith says she likes to have friends_________ are different from her.
A. whose B. who C. which
"How much money did you_________ in fixing your watch?" "About ten yuan. "
A. cost B. pay C. spend
When you leave the reading room, you should remember to _____ the lights.
A. turn onB. turn down C. turn off
"_________do you play the piano?" "Twice a week. "
A. How far B. How often C. How long
If my father_________ back, please let me know.
A. comes B. will come C. come