Where were you just now? ________ Jack called you on the phone．

Some

Certain

One

Another

It’s definitely ________ that you constantly repeated the same mistake．You ought to explain it to me．

no doubt

no wonder

no coincidence

no hesitation

Is it ________ that he is going to get married next month?

real

true

genuine

factual

Don’t be nervous about ________ confidence at social event．Get prepared in advance．

a lack

lack in

lacking of

lack of

It is believed that Tom will make an outstanding racing driver because he has a talent ________ driving．

for

of

on

to

We had better leave things ________ they are until the police arrive．

if

when

since

as

Many players later failed drug test, ________ the race had to be rerun．

now that

so that

as soon as

in order that

Saleha came home so thin and weak that her own children barely ________ her．

realized

understood

recognized

knew

After taking ________ exercise, he caught a cold and soon had ________ temperature．

the; the

a; a

an;不填

不填; a

Studies show that students are more ________ to be addicted to playing computer games if they always play them before computer screens every day．

possible

probable

likely

perhaps