In spite of _____ has recently been done to provide more buses for the people, a shortage of public vehicles remains a serious problem.
The pollution in Beijing is expected to improve, ________ a series of air pollution control measures.
Life teaches us not to regret over yesterday, for it ________ and is beyond our control.
________ money for school fees, I had to take another part-time job.
The best way to encourage your kids to enjoy meals is to ________ them in the planning and preparing.
The classical book is still worth it ________ it doesn’t sell well.