________ the mountains was hard work for them but as they looked around, they could not help screaming.
| A．Climb | B．To climb | C．For climbing | D．They climbed |
There is no to worry. He is old enough to take care himself.
A, difference B, need C, possibility D, sense
It is important and necessary for us to wash our hands before eating, because we can
disease our bodies with the meals.
A, absorb, into B, take in, to C, suffer from, in D, take, out of
As is well known, it is Hawking who the theory of black holes.
A, puts forward B, has put forward C, invented
D, raised
When you finished a piece of writing, check that that the tenses are consistent and the
spelling is correct.
A, they are making senses B, it makes sense
C, it makes senses D, they make sense
We all feel it is Jack as well as his wife that ____ for their son’s bad behaviour at school.
| A．is to blame | B．is to be blamed | C．are to be blamed | D．are to blame |