根据句意及汉语提示，写出各单词的正确形式，每空一词。
Perhaps no one has known the (原因) of this kind of disease so far.
Alice is full of energy and does not mind doing (额外的) work for you.
Our English teacher gives us a great deal of (建议) on how to remember words.
President Xi said the (友谊) between China and the UK would have a bright future.
It’s reported that the teachers of Hengshui High School are (严格的) in English handwriting than in many other schools.
用所给词的适当形式填空。How many (child)are there in your family?
Coke is an (healthy)drink.
Thank you for (send)emails to me.
My father often (search)for information on the Internet.
Now Sam and his sister (learn)Chinese in China.
根据句意及首字母提示完成单词My father is a doctor; he works in a h .
Eating too much sugar is b for you.
S the document on the computer, then we can find it next time.
How about your school (旅行)to Hong Kong?
Mum wants to get some new (家具)for our house.
阅读下面的材料，根据所给的首字母提示，用合适的单词填空。
We usually buy things in a shop, a market or a supermarket. Shopping always takes too much
t . We have to walk around for a long time to look f
the things we want. Sometimes we have to c
many heavy shopping bags. We’re always very tired after s
. Now it’s different from that in the past(过去). We can do many things at h
, we don’t need to go to the shop. We can buy many good and c
things on the Internet(因特网), they look nice but don’t cost much. It seems easy and quick, b
it sometimes brings us some trouble(麻烦). The clothes you buy on the Internet are d
from what you want, or the size is too s
or too big. You may see many people wear the same clothes in the street. Do you know why? B
they all buy clothes on the Internet. How interesting!
根据句意用所给动词的适当形式填空。My mother enjoys _________(dance) very much.
It takes me 2 hours_________ (do) my homework every day.
Listen! Who_________ (play) the piano in the classroom? .
Some dogs just don't know how_________ (have) fun.
We plan ______(go) swimming this weekend.
根据句子意思，用括号内所给单词的适当形式填空。My red gloves are_______(make) of wool.
Lily, _______ (try) on the boots before you take them.
Sandy is_______(interest) in Chinese stamps.
We have reading classes_______ (two)a week.
What about_______ (play) volleyball after school?