I failed in the oral examination last term and only then ________ the importance of spoken English．

I had realized

had I realized

I did realize

did 1 realize

Einstein developed Theory of Relativity, ________ completely changed the way ________ scientists understand space and time．

which; that

which; which

that; which

that; that

I ________ a present from her, so I was disappointed when I didn't receive one．

have expected

would expect

was expecting

have been expecting

－Was ________ in 1896 ________ Peking University was founded?

－No．If I remember correctly, it's in 1898．

it; when

it; that

that; when

that; that

A country's future prosperity depends, ________ an extent, ________ the quality of education of its people．

to; upon

at; on

to; in

in; on

－I fell deeply in love with a girl I met online．

－Come on．The person on the other side of the Internet ________ be a BOY like you．

must

should

can

need

In Japan, student visa holders are not allowed to engage in paid activities ________ they have the permission of the school and the immigration office．

if

since

because

unless

During the Spring Festival, people visit their friends and relatives, ________ them best wishes．

to give

giving

having given

to have given

With mobile phones, we can keep in touch with ________ wherever we are．

another

the other

others

the others

－Tom, you'd better write more neatly．I can hardly ________ your writing．

－Thanks．I will．

make out

take out

put out

turn out