(2018十堰改编)Too much time ________ on computer games by most teenagers. So their parents are worried about their health and study.
A.spends B.is spent
C.has spent D.spending
(2018益阳改编)If you are over 18 years old, you ________ to drive a car in our country.
A.may allow B.may be allowed
C.can allow D.can be allowed
(2018沈阳改编)There will be fewer workers in factories because most work ________ by robots.
A.is done B.was done
C.will be done D.will do
Tea，the most popular drink in the world，_________ by accident in China.
A. discovered B. is discovered C. will be discovered D. was discovered
I ________ the early bus. So I have to wait for the next one.
A.was missing B.missed C.am missing D.will miss
The summer vacation is around the corner. I ________ more time helping my parents on the farm.
A.spent B.am spending C.spend D.will spend
