If what you are teaching doesn’t _____ to your students, your students will gradually lose interest in it.
| A．attract | B．inspire | C．appeal | D．interest |
There is no doubt _____ short sight is a serious problem among the youth of our country.
| A．which | B．whether | C．what | D．that |
From the deep valley ______, which had my heart in my mouth.
| A．came a frightening sound | B．a frightening sound came there |
| C．did a frightening sound come | D．a frightening sound did come |
______, I always feel I want a few more days.
| A．However long is a vacation | B．However long a vacation is |
| C．However is a vacation long | D．However a vacation is long |
-- Did you get your car from the garage yesterday?
-- Yes, _______, I wouldn’t have driven to the party on time.
| A．otherwise | B．besides | C．however | D．therefore |
-- Go climbing the hill this vacation. OK?
-- ______. I love getting close to nature.
| A．I couldn’t agree more | B．I’m afraid not |
| C．I believe not | D．I don’t think so. |