I had wanted to help you last night but I couldn’t spare any time.for I_____an essay that is due this morning.
This drug is less likely to cause side effects when ________ late in the day.
You haven’t changed at all —— you still look________ the same as before.
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.