Many sea animals are in danger and ________ disappear from the Earth someday.
A.must B.should C.need D.may
The opening ceremony of the event ________ in Rome on Jan. 21, 2020.
A.is held B.was held C.will be held D.has been held
Planning a trip is easy, ________ packing luggage can be a little bit difficult.
A.but B.or C.so D.for
Most people enjoy ________ their holidays in Thailand for its natural beauty and wild animals.
A.spend B.spending C.spent D.to spend
Don't worry. The meeting room ________ with everything necessary for the ceremony.
A.is decorated B.decorated C.has been decorated D.had been decorated
After ________ some complaints about the food, the manager decided to change the cooks.
A.receive B.receiving C.received D.to receive
