Foreign ministers of the two countries hold regular meetings, they can exchange views on international issues of both concern.
| A．what | B．where | C．which | D．why |
It’s the third time ＿＿＿＿＿ arrived late this month.
| A．that you | B．when you | C．that you’ve | D．when you’ve |
Our classroom is very clean. Do you know who＿＿＿cleaned it?
| A．was it that | B．it was that | C．was it who | D．he was |
—— Was that the new comer who walked by?
—— ＿＿＿＿＿.
| A．It must be that | B．It must have been | C．He must be | D．This must have been |
＿＿＿＿being March 12th, they planted trees on the hill.
| A．That | B．It is | C．It | D．This |
—— Have you ever seen a whale alive?
—— Yes, I’ve seen ＿＿＿.
| A．that | B．it | C．such | D．one |