Some plants can take in carbon dioxide we breathe out and give ______ oxygen to us.
A. in case B. in turn C. in return D. in addition
— If you like I can do some shopping for you.
— That’s very kind of you for your ______.
A. service B. offer C. point D. suggestion
It’s no longer a question now ______ man can land on the moon.
A. that B. which C. whether D. what
It’s said that there are plenty of hotels in that town. There ______ be any difficulty for you to find somewhere to stay.
A. wouldn’t B. mustn’t C. shouldn’t D. needn’t
Yesterday I was walking downstairs when I missed my foot and had a bad fall, nothing serious, ______.
A. even B. either C. then D. though
Maria is fond of all kinds of sports, but she likes swimming ________.
A. in practice B. in general C. in fact D. in particular
