He made a mistake, but then he took action to change the situation ________ it got worse.
Last year I _________ drive. I used to take the bus.
These days my classmates are busy ________ ready for the final exam.
There’re too many clothes in the shop. I really can’t decide .
Mary prefers _______ to ________ . A. sing, dance B. sing, dancing C. singing, dancing
He doesn’t know ________ they will plant trees on Saturday or not.