Not everyone has realized what ________important part the balance of ________nature plays in their life.
A.an;the | B./;the | C.an;/ | D.the;/ |
---- Hello, John. I haven’t seen you since we were at university.
---- ________. It’s been a long time.
A.That’s all right. | B.All right. | C.That’s right. | D.Right enough. |
I have kept that photo ______ I can see it every day, as it always reminds me of the happy days in New York.
A.which | B.where | C.whether | D.when |
Experts say walking is one of the best ways for a person to _______ healthy.
A.maintain | B.stay | C.live | D.preserve |
If you want to ________ a pleasant visit, find out as much as possible about the manners and customs of your host country.
A.ensure | B.deserve | C.secure | D.serve |
It’s true that the old road is less direct and a bit longer. We won’t take the new one, _______, because we don’t feel as safe on it.
A.somehow | B.though | C.therefore | D.otherwise |