She wonders （）will happen to her private life in the future.

单项选择题My mother still went to work yesterday （）she didn’t feel well.

A.whether
B.though
C.as
D.while

单项选择题India had the second （）population in the world.

A.largest
B.larger
C.most
D.smallest

单项选择题-（）？A lot of things are on sale.—That’s a good idea.Let’s go.

A.Why don’t we go shopping today
B.Do you like shopping
C.What are you going to buy

单项选择题-we need some toilet paper.-（）.

A.let’s go to the bookstore
B.let’s go
C.let’s buy them
D.let’s get some 

单项选择题Polly enjoys ( )in a band in her free time.play the guitarB. to playing the guitarC. playing the guitar

单项选择题What causes cavitation in a centrifugal pump （）．

A.Vapor
B.Rough
C.Worn
D.Heavy

单项选择题l need some red ink badly，butthere’s （）at hand.

A.nothing
B.a little
C.not
D.none

单项选择题If I（）his email address，I would have sent him a message yesterday.

A.have known
B.had known
C.will know
D.know

单项选择题He read my credit card number out loud in front of customers （）I could stop him.

A.before
B.while
C.as
D.since

单项选择题-I’m afraid I have to say goodbye to you.-（）.

A.I’m sorry
B.That’s all right
C.Never mind
D.Good night