— I'm afraid that we can't the math problem the teacher helps us.
— That's true.It's too difficult.
A．work on；ifB．work on；unless
C．work out；ifD．work out；unless
A couple from Australia welcomed five healthy babies ____January．（ ）
A．atB．inC．forD．on
Paul went to the bookstore with some friends of________．（ ）
A．heB．himC．himselfD．his
This afternoon my grandfather bought a magazine and a newspaper．The magazine is in his bag，but he can't remember where he put ______newspaper．（ ）
A．aB．anC．theD．/
Excuse me， could you tell me ？
Sorry． A city map can help you．（ ）
A．where the play will be on
B．how I can get to the museum
C．when the bookstore closes
D．if you can lend me your bike
My shirt needs washing． Could you please help me with that， Mary？
． Do it yourself．（ ）
A．No way．B．Not really．
C．No problemD．Sounds great