He was busy yesterday. ____________, he would have come to my party.
A.Moreover B.Therefore C.However D.Otherwise
If you have any questions, please do not____________ to ask your teachers.
A.suffer B.hesitate C.attack D.ensure
____________ China has made advances in 5G technology, there is still a long way to go for its popularity.
A.If B.Because C.Since D.While
I would appreciate____________ if you could help me out when I am in trouble.
A.that B.one C.it D.this
At the beginning of the year 2020, students never thought they____________ such a long winter vacation.
A.would have B.are having
C.have D.have had
____________ by his behavior, I said all this to my best friend.
A.Disappointing B.To disappoint
C.Disappointed D.Being disappointed
