Because of the absence of the atmosphere on the moon, the sky there is black, just as in space.
= > Because there ________________________________

As people use a lot of wood-pulp, many trees are cut down.
The more ________________________________

 I was surprised to find he’d gone behind my _____.

A. hat                                B. back                             C. thought                    D. leg

 After all, he only __________ . He never does what he promised .

A. speaks with a forked tongue                               B. has one foot in the grave

C.  smells a rat                                                           D. jumps through hoops

This information is too important, you can’t sweep it under  the ______.

A . tracks                          B. carpet                           C.  back                        D. hat

It’s obvious that  she’s lying through her _____.

A. hat                                B. teeth                             C. head                         D. back

When you’re  ________ trying to start a business, you should  utilize every minute you have.

A. breaking your back                                              B. raising a finger

C. pulling your socks up                                                                                D. going through thick and thin

She _______ in order to send her children to school.

A. cut corners                                                            B. worked her fingers to the bone

C. made a meal of it                                                  D. called it a day

If you know what you really want, you should ______ to get it.

A. pull their weight                                                   B. go all out

C.  pull your socks up                                               D. fight tooth and nail

We cannot  afford to carry members who are not  _______.

A. doing things by halves                                        B. making a meal of it

C. knowing beans about it                                       D. pulling their weight