English problemMary ______(not know)what _____(to buy).She is waiting _______me ________the doctor's office.I can help you _____learn English.He often helps his classmates __________study English.You _______have a bad cold.

doesn't know .... to buy 不知道买什么
for ... in 在医生的办公室等我
不填。。 help sb do sth.
不填。。 help sb do sth..
must 你一定得了重感冒。。。

Mary _doesn't know_____(not know)what ___to buy__(to buy).
She is waiting _____for__me __to______the doctor's office.
I can help you __to___learn English.
He often helps his classmates ___to_______study English.
You _might______have a bad cold.

1. didn't know to buy
2. for outside
3. to
4. to
5. had

don't know to buy
for in
to
to
may

Mary _____does not know ____what _____to buy___.She is waiting __for_____me __in______the doctor's office.I can help you _to____learn English.He often helps his classmates __to___study English.You __m...

dose not know to buy
for at
不填
不填
may