I just don't understand_______ that prevents so many Americans from being as happy as one might expect.
| A．why it does | B．what it does | C．what it is | D．why it is |
The shy girl felt ________ and uncomfortable when she couldn’t answer her teacher’s questions.
| A．amazed | B．awkward | C．curious | D．amused |
John is the only one of the students in our class that never ________a mistake even when it is pointed out to him.
| A．admit making | B．admits making | C．admit to make | D．admits to make |
Some children are too ________ about their food, which is bad for their growth.
| A．careful | B．special | C．particular | D．curious |
________ big or small countries, we will make friends with anybody who admits that there is only one China.
| A．Instead of | B．Thanks to | C．Except for | D．Regardless of |
The research project has only been______for three months, so it’s too early to comment on its success.
| A．in the way | B．by the way | C．under the way | D．under way |