1 Miss Young remembers (see) seeing... her keys on the table yesterday .

2 Peter (not come)..didn't come. to the show on time yesterday because of the rain.

3 My father often ( finish).finishes.. working at 5.00 P.M

4 What did you (do) .do.. when the door bell rang last night?

5 Le Na (take) .has taken.. many trips to Ho Chi Minh city since 2015

6 He drives so ...carefully... that he has never had any accidents (CARE)

7 He is probably the most ..successful.. tennis player of all time (SUCCEED)

8 The baby laughed .happily... as she played with her toys (HAPPY)

9 There are some ..differences. between British English and American English (DIFER)

10 We are worried that rivers and cannals are becoming more and more..plluted. (POLLUT)

1. seeing 2. didn't come 3. finishes 4. were (you) doing 5. has taken 6. carefully 7. successful 8. happily 9. differences 10. polluted