President Obama promised victims of the deadliest accident in 65 years ______ the government would help them.
The taller children should stand at the back _____ everyone can see.
During the race many cars ______ while my new solar car came out first.
I was greatly ______ at how he worked out the ______ problem in a creative way.
In the garden there are a lot of flowers ______ I don’t know the names.
_______ basketball, the girl students are also encouraged to play football.