It was five o’clock in the afternoon ________ they climbed up to the top of the mountain．

since

when

That

until

A team of 15 Indian experts are organizing to help us, most of ________ women．

them

them are

whom

that

The ________ of booking tickets in advance is that you can get better seats．

approach

advantage

union

state

We’ve worked out a method ________ our production can be greatly raised．

that

what

of which

by which

Wherever you go, you can see the products ________．

advertise

advertised

to be advertised

being advertised

I don’t know why he has been absent ________ class for so long．

in

for

with

from

A good plan must be ________, so that it can adapt to some necessary changes．

flexible

convenient

specific

considerate

________ he referred to in his article was unknown to the general reader．

That

What

Whether

Where

This car is of good quality．If it ________ break down within 2 years, we would repair it for free．

would

should

could

might

There are 3 colors in the British flag, ________, red, white and blue．

like

namely

such as

for example