---Waiter! How soon can I get my food? I just have half an hour left before my train leaves.
---It be ready in five minutes.
| A．may | B．should | C．could | D．need |
____________myself to my study，I would be sitting in a comfortable office now.
| A．If I devoted | B．Should I devote |
| C．Would I devote | D．Had I devoted |
.Sunset at Mount Huangshan is a beautiful scene，_________I`ll never forget.
| A．one | B．it | C．what | D．that |
Mike is handsome，kind and full of energy。_________，I can`t speak too highly of him.
| A．As a result | B．By the way |
| C．In a word | D．On the contrary |
Teachers` advice of _________stress over the school days must be granted by the headmaster.
| A．students to reduce | B．students reducing |
| C．students reduced | D．students being reduced |
The public transportation in this city is very convenient，where many buses run _________ 。
| A．occasionally | B．approximately |
| C．immediately | D．frequently |