Children under 12 years of age in that country _________ be under adult supervision（监管）when in a public library.
| A．must | B．may | C．can | D．need |
________flights had to be put off because of the hurricane all those days .
| A．A great many of | B．A great number of |
| C．A great deal of | D．The great number of |
Though you don’t like him , you should treat him the way ______ suits him most . After all , he is your leader .
| A．in which | B．how | C．that | D．/ |
Dark glasses are sometimes worn to ________ the eyes from strong sunlight .
| A．protest | B．guarantee | C．protect | D．prevent |
“ Although ,” the boy said , “ _______ over and over , the maths problem remained confusing to me ” .
| A．explained | B．explain |
| C．explaining | D．having explained |
The detective, ________ to read a newspaper, glanced at the man ________ next to a woman.
| A．pretending; seat | B．pretended; seated |
| C．pretended; seat | D．pretending; seated |