—Jack is very clever and he studies hard as well.
—It’s no ______ he always comes out first in the exams.
| A．doubt | B．need | C．wonder | D．problem |
I first met Lisa three years ago. She _____ at a shop at the time.
| A．has worked | B．was working |
| C．had been worked | D．had worked |
He studies the subject _____.
| A．far | B．farther | C．further | D．farthest |
Charles Babbage is generally considered ______ the first computer.
| A．to invent | B．inventing |
| C．to have invented | D．having invented |
"Can’t you read?" Mary said ______ to the notice.
| A．angrily pointing | B．and point angrily |
| C．angrily pointed | D．and angrily pointing |
Look, they seem _____ about you.
| A．talk | B．to talk | C．to be talking | D．to be talked |