In some African countries, children are made ________ heavy work because their parents have died.( )
doing
done
do
to do
Mike went boating with his friends last weekend. They ______ a good time.
—When did your school hold the sports meet?—Last week. And I _______ the girls’ 400-metre race.
At first, she ___________ Like math, but now she ________.
-Excuse me, look at the sign NO PHOTOS!-Sorry, I _________.
The girl who _______ by car has been taken to the hospital.