You shouldn’t take photos in the museum, it’s ____ the rules.
| A．for | B．against | C．about | D．from |
--- Have you ____ your key?
--- No, I’ve ____ for it everywhere, but I can’t find it.
| A．find; looked | B．looked; found | C．found; looked | D．looked; looked |
My brother always ____ his lesson, so he is a top student.
| A．works hard at | B．work hardly at | C．work hard at | D．works hardly at |
The dog is very ___, and it can work out the problem____.
| A．smart; easy | B．smart; easily | C．smartly; easily | D．smartly; easily |
Danny is always very happy when he has something ___.
| A．eat | B．eats | C．eating | D．to eat |
Daming likes cars. He enjoys _____ models cars of all kinds.
| A．making | B．make | C．to make | D．made |