All 5 children of the Blacks, _______ are now working abroad, will come back for their parents’ 50th wedding anniversary.
| A．two of whom | B．two of them | C．both of whom | D．both of them |
The first question was quite difficult but the rest _______ easy, _______ surprised us all.
| A．was; which | B．was; that | C．were; which | D．were; which |
The rescue team __________ 15 countries has come to aid..
| A．consists of | B．is made up of | C．consisting of | D．make up |
Studies show that people are more __________ to suffer from back problems if they always sit before computer screens for long hours.
| A．likely | B．possible | C．probable | D．sure |
At last the soldiers reached ______the locals called the Golden Triangle.
| A．that | B．where | C．what | D．when |
--- What is that wonderful smell?
--- Our neighbor ________ for a party.
| A．have prepared | B．is preparing | C．prepare | D．will prepare |