difficult it might be, I will try my best to work it out.
—Can I pay the bill by check?—Sorry, sir. But in our hotel payment ______ be made in cash.
We are very proud of ______ you have accomplished so far. You should be proud too.
—Do you ______ the idea of living a low-carbon life?—It sounds tough, but it is a tendency.
The public transportation in this city is very convenient, where many buses run ______.
The purse found on the playground matches the ______ by Mary, so it must be hers.