I spent half an hour ___________ my homework.
| A．finish doing | B．to finish doing | C．finishing to do | D．finishing doing |
David Beckham has ______ children. Brooklyn Beckham is his ______ son.
| A．third, first, | B．three, one |
| C．three, first | D．third, one |
—_____ can you finish the task?
—In two days.
A. How often
B. How far
C. How soon
Although he has failed many times, he keeps _____ hard to make his dream come true.
A. working
B. to work
C. worked
The person ______ called yesterday wanted to buy the house.
A. whichB. who C. whom
In spring, a lot of young trees _______ in our city.
A. are planted
B. plant
C. has been planted