Idon’tknowwhoinventediPhone,bu

I don’t know who invented _____ iPhone, but I think it is____ useful invention．

A．the; a

B．the; the

C．an; the

D．an; a

登录免费查看答案和解析

相关试题

__________for the bus, I heard a noise,

A．While waiting

B．While I waiting

C．I was waiting

D．Waited

收藏答案/解析

To the parents’ worry, some middle school students are ______ computer games and completely forget their studies.

A．crazy about

B．fond of

C．concerned for

D．serious about

收藏答案/解析

It was in 1969 ______ two Americans went to the moon by spaceship.

A．when

B．that

C．at that time

D．just then

收藏答案/解析

She pretended to be calm but _______she was more than nervous
at the time she was being questioned.

A．in actual

B．actually

C．as matter of fact

D．in a fact

收藏答案/解析

The problem ________ at the meeting yesterday.

A．came to

B．came across

C．came up

D．came up with

收藏答案/解析