— I can’t move the bookcase. Could you give me a hand?
— ______. It’s a piece of cake.
| A．Not at all | B．No problem | C．Never mind | D．Of course not |
The fact has worried many scientists ______ the earth is becoming warmer and warmer these years.
| A．what | B．which | C．that | D．though |
Frank put the mediocre in the top drawer to make sure it would not be_______ to the kids.
| A．accessible | B．relative | C．acceptable | D．sensitive |
---Do you want a lift home? 
---It’s very kind of you, but I have a much late in the office. I overslept this morning because my morning clock _______.
| A．doesn’t go off | B．won’t gone | C．wasn’t going off | D．didn’t go on |
It is reported that the police will soon ____ the case of two missing children.
| A．look upon | B．look after | C．look into | D．look out |
------- What is the price of petrol these days 
-------Oh, it ______ sharply since last month.
| A．is raised | B．has risen | C．has arisen | D．is increased |