－Hey, you haven't been acting like yourself, Everything OK?
－.
| A． | I'm fine, thanks | B． | Sure, it is | C． | That's good | D． | It's OK |
Leaves are found _______ all kinds of trees, but they differ greatly ________ size and shape.
| A．in; on | B．in; from | C．on; by | D．on; in |
To save class time, our teacher has ________ students do half of the exercises in class and complete the other half for our homework.
| A．we | B．us | C．our | D．ours |
Could you show me the TV set you’d like ________?
| A．to have repaired | B．repairing it | C．to have it repaired | D．to repair it |
Now an increasing number of middle school students go abroad for further study at their own ________, trying hard to realize their dreams.
| A．price | B．cost | C．expenses | D．pay |
Darwin counted 225 flowering plants, ________ he collected and brought home 193.
| A．that | B．in that | C．of which | D．all of which |