1£®You can't imagine what great difficulty we have ever had__________(deal) with the problems.

2£®Snow__________(settle) on the rooftops of the village overnight when he was found.

3£®There are wide__________(vary) of flowers in the park.

4£®Film has a much shorter history£¬especially when__________(compare) to such art forms as music and painting.

5£®Animals are__________(obvious) a lower form of life than man.

6£®Mary is similar__________appearance__________his sister£¬but they differ__________voice.

7£®—Where would you like to have your dinner£¬in the restaurant or at home?

—Either is OK.It makes__________difference to me.

8£®It's obvious to the students__________they should get well prepared for their future.

9£®The children studying there range in age from 13 to 17£¬but they have a lot__________common.

10£®I found__________confusing for me to hear his remarks.