－These  books are too heavy for me to carry.

－           .

A.You may ask for help                              B.I’will give you a hand

C.I’will do you a favor                                D.I’d come to help

The father as well as        every Sunday afternoon in winter.

A.is going                      B.go                  C.goes             D.are going

People have always been corious           how living things on the earth exactly began.

A.in                              B.at                               C.of                              D.about

I think it is necessary for my 19-year-old son to have his own mobile phone, for I sometimes want to make sure if he           home for dinner.

A.come             B.comes                        C.has come                      D.will come

Engines are to machines ____ hearts are to animals.

A. as   B. that    C. what   D. which

I’d appreciate ____ if you would like to teach me how to use the computer.

A. that   B. it   C. this   D. you

Someone who lacks staying power and perseverance is unlikely to ___ a good researcher.

A. make   B. turn   C. get    D. grow

We’re just trying to teach a point ____ both sides will sit down together and talk.

A. where   B. that   C. when   D. which

____ team wins on Saturday will go through to the national championships.

A. No matter what   B. No matter which   C Whatever   D. whichever

Although the causes of cancer ____, we do not yet have any practical way to prevent it.

A. are being uncovered    B. have been uncovering  

C. are uncovering        D. have uncovered