This cake is very sweet. You ______ a lot of sugar in it.
| A．should put | B．could have put | C．might put | D．must have put |
Our headmaster spoke at the parents meeting for one hour without ________ his notes.
| A．looking up | B．bringing out | C．referring to | D．learning about |
I ate __________ sandwich while I was waiting for _______ 20:08 train.
| A．the; a | B．the; the | C．a; the | D．a; a |
Throughout the week, the boy _____most of the work in the manager’s office．
| A．took on | B．took off | C．took in | D．took over |
Our country is developing at an amazing speed, which is _____makes me feel so proud.
| A．that | B．why | C．what | D．where |
The mother didn’t know _____to blame for the broken glass as it happened while she was out.
| A．who | B．which | C．they | D．that |