Believe it or not, the ancient Chinese painting is worth more than ___ dollars!
The doctor said jokingly that his own infection of the virus _______ the discovery of a vaccine (疫苗)of the disease.
-- Jimmy had a lot of parties recently.-- Yes, that might ______ why he didn’t do well on the test.
In order to work better in the future, each of us must first of all know our ______ and weaknesses.
31. The engine of the bus was out of order and the bad weather ______ the worries of the passengers.
-- Why didn't Mike attend the evening party? -- He is a quiet boy; He loves reading at home ______ to parties.