Our teacher often tells us________in the river． It's dangerous．（ ）
| A． |
not swim |
B． |
not to swim |
| C． |
to swim |
D． |
swimming |
Johnson won't answer the phone if he ___________ the number．（ ）
A．knewB．doesn't know
C．will knowD．didn't know
If you want to know more about space，please ___________ the book A Brief History of Time．（ ）
A．look throughB．look around
C．look afterD．look down upon
It's very kind ___________ you to lend me your reusable shopping bags．（ ）
A．ofB．forC．toD．with
To keep children safe，we ___________ put the things like knives and medicine away in our house．（ ）
A．mayB．shouldC．canD．might
For more than once，our head teacher asks us ___________ the habit of keeping a diary．（ ）
A．developB．developsC．developingD．to develop