The Smiths don't usually like staying at ________ hotels，but last summer they spent a few days at a very nice hotel by ________ sea.
| A．/；a | B．the；the | C．/；the | D．the；a |
Some aspects(方面) of a teacher’s job ______ be tiring, and teachers often ______ work at inconvenient hours.
| A．can; must | B．may; can | C．can; have to | D．have to; must |
My friend, Tom, may have missed taking the flight to Africa, ______ he can’t arrive for another hour.
| A．in which case | B．in that case | C．in case | D．in any case |
The sports meeting, due to ______ this weekend, has been put off due to the rain these days.
| A．being held | B．holding | C．hold | D．be held |
Researches are convinced ______ the positive effect of laughter ______ physical and mental health.
| A．of; at | B．by; in | C．of; on | D．at; on |
The ______ scene where the accident happened made him ______ to death.
| A．scary; scared | B．scared; to scare |
| C．scared; scary | D．scary; scary |