On May 11th, the WHO officer Dr. Gauden Galea wrote a letter to Chinese students ________ he called on young people to help people in need.
A.who B.which C.where
— ________ you wear your own clothes on school days? It’s not allowed according to your school rules.
— Mom, we have a day off today!
A.Could B.Must C.Need
— I have no idea what to buy for my mom’s birthday.
— How about using the silk our city is famous for ________ her a scarf?
A.make B.making C.to make
— Can you help me look after my dog when I am on business, Jane?
— I’m afraid I am ________ Jessica. She might be a better choice for you.
A.as careful as B.not so careful as C.more careful than
— I heard that many nurses volunteered to join in the medical teams this January.
— Yes. In one hospital ________ of the nurses were born in the ________.
A.four fifths; 1990 B.four fifth; 1990s C.four fifths; 1990s
The world is racing against the clock to produce COVID-19 vaccines (疫苗) to help stop the disease, but few people can tell the exact time. ________?
A.can they B.do they C.can’t they
