Our teacher recommended us so useful a grammar book ______ we can make use of while studying English.
| A．which | B．what | C．that | D．as |
Mother told Jim to ______ the milk until it boiled and then turn off the gas.
| A．observe | B．watch | C．notice | D．glance at |
Some friends tried to settle the quarrel between Mr. and Mrs. Smith without hurting the feeling of _____, but failed.
| A．none | B．either | C．all | D．neither |
in the regulations that you should not tell other people the password of your e-mail account.
| A．It requires | B．It is required | C．What requires | D．What is required |
Always read the on the bottle carefully and take the right amount of medicine.
| A．instructions | B．explanation | C．description | D．introductions |
Would you please the paper for me and see if there are any obvious mistakes?
| A．look around | B．look into | C．look up | D．look through |