—Can you describe ___ it happened?
—Yes, I was riding on my bike ___ a car knocked me down from behind．
| A．when; as | B．how; as | C．how; when | D．how; while |
-When ______ and visit our exhibition next month ?
-When _______ , I will let you know .
| A．will he come ; he will come | B．will he come ; he comes |
| C．does he come ; he will come | D．does he come ; he comes |
---How long _______ each other before they ________ married ?
-- -For about a year .
| A．have they known ; get | B．did they know ; were going to get |
| C．do they know ; are going to get | D．had they known ; got |
---How long _______ each other before they ________ married ?
-- -For about a year .
| A．have they known ; get | B．did they know ; were going to get |
| C．do they know ; are going to get | D．had they known ; got |
I really wonder ______ he has posted me many parcels _____ we worked together .
| A．how ; after | B．why ; when | C．when ; before | D．why ; since |
It is a rule in his family that ______ comes home earlier should cook the dinner for the family .
| A．anybody | B．who | C．who that | D．whoever |