We are going to have a barbecue _______ it rains .
| A．if not | B．when | C．except that | D．unless |
I know a little bit about the city as I __________ there for one year in my youth.
| A．am studying | B．had studied | C．studied | D．have studied |
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 |