John wanted to ride his bike in the street but his uncle told him _____ .
A. not to B. not do B. not do it D. do not to
It is the protection for the trees___________ really matters, rather than how many trees are planted.
| A．what | B．that |
| C．不填 | D．which |
You can't see the___________ now for they are having a meeting at the moment.
| A．editor-in-chiefs | B．by an hour |
| C．by hour | D．each hour |
He has a part - time job and was paid___________.
| A．by the hour | B．by an hour | C．by hour | D．each hour |
The sunlight came in____________ the windows in the roof and lit up the whole room.
| A．through | B．across | C．by hour | D．each hour |
Keep up good state of mind even if you___________ fail plenty of times.
| A．must | B．will | C．can | D．should |