初中英语状语从句单选题

You will achieve nothing _ you work hard.

A．if

B．unless

C．when

D．that

You won’t feel happy at school ______ you get on well with your classmates.

A．though

B．when

C．unless

D．because

I will send you an e-mail as soon as I ______ in Canada.

A．arrive

B．arrived

C．am arriving

D．will arrive

I’m waiting for my friend. , I’ll go shopping alone.
A. If she comes B. If she doesn’t come C. If she won’t come

Mr. Green speaks very loudly all the people can hear him clearly.
A. so that B. when C. because