________ everyone has come, let's begin our meeting．

A．Though

B．After

C．Now that

D．Before

Everyone must be ________ electricity．

A．care to

B．careful to

C．careful with

D．careful at

Do you ________ smoking in the meeting room?

A．like

B．allow

C．let

D．make

－What ________ sunny day it is! Let's go and visit ________ Browns, shall we?

－OK．

A．a;/

B．/; the

C．a; the

D．the; a

The old man is blind．He lost his sense of ________ a few years ago．

A．touch

B．sight

C．hearing

D．taste

Do you think Las vegas is ________ for gambling in the world?

A．the greater city

B．one of the greatest city

C．one of the greatest cities

D．one of the greater cities

Hey, ________!The books on the shelf are falling．

A．look out

B．look up

C．look at

D．look for

Lily isn't at home．I believe she ________ be at her sister's home．

A．can

B．need

C．may

D．must

Mary sings ________ and her dancing is even ________．

A．terrible, terribly

B．terribly, more terrible

C．terribly, terrible

D．terribly, more terribly

Although planes travel ________ than trains, I enjoy taking a train to go on a tri．From the train, I can see many beautiful views．

A．much more slowly

B．more faster

C．much slowly

D．much faster