The volunteer teachers in the rural areas are _________ college students．

mainly

nearly

clearly

freely

－That must be Mr．John．

－No, it _________ be him．I saw him off at the airport half an hour ago．

may not

mustn't

can't

needn't

I stopped laughing when I realized my father was _________ about it．

crazy

serious

careful

special

－Why didn't Mary see me wave(揮手)to her?

－She _________ in the other direction．

looked

has looked

was looking

is looking

I don’t like western food．I seldom eat it _________ I go to MacDonald with my daughter．

if

when

as

unless

－Am I late?

－No．The speaker has just arrived．You’ve _________ nothing．

caught

missed

got

lost

I like houses near the seaside, but I don’t have enough money to buy _________．

it

this

that

one

－The cost of food and clothing is going up nearly every day．

－Yes, the price of vegetables is much _________ than before．

expensive

higher

high

cheaper

The buildings in the old market have been pulled down to make _________ for a new park

in our city．

room

place

area

ground

－Do you know _________ man standing there?

－I only know he’s from _________ European country．

a; an

the; the

the; a

a; the