I send a text to my mum this morning.

I ( ) send a text to my mum this morning. A: could B: was able to C: were able to

The “whoa” at the end of the text is used to show my surprise and pride of his son’s performance in grammar.

Complete the following sentences by translating the Chinese into English based on Text A, Unit 4.In welcoming you to the university, I __________(让我想起）my own high school graduation and the photograph my mom took of my dad and me.

I can _____ my roommate, "On my way home!!" A: vent B: intimidating C: scared D: text E: get caught up in F: bump G: immerse H: poke I: random

(词汇题Unit 7 text B) I hope the battery of my cell-phone can hold ___ until we get help.

中国大学MOOC: Directions:Fill in the blank in the following sentence with an exact word from the text.My desire to tipthe _____ in favor of the healthy, happy children drew me to medical research.

函数$f(x)=x+\sin x$的( )。 A: 上凸区间为$(2n\text{ }\!\!\pi\!\!\text{ },(2n+1)\text{ }\!\!\pi\!\!\text{ })$,下凸区间为$((2n-1)\text{ }\!\!\pi\!\!\text{ },2n\text{ }\!\!\pi\!\!\text{ })$ B: 上凸区间为$((2n-1)\text{ }\!\!\pi\!\!\text{ },2n\text{ }\!\!\pi\!\!\text{ })$,下凸区间为$(2n\text{ }\!\!\pi\!\!\text{ },(2n+1)\text{ }\!\!\pi\!\!\text{ })$ C: 上凸区间为$(n\text{ }\!\!\pi\!\!\text{ },(n+1)\text{ }\!\!\pi\!\!\text{ })$,下凸区间为$((n-1)\text{ }\!\!\pi\!\!\text{ },n\text{ }\!\!\pi\!\!\text{ })$ D: 上凸区间为$((n-1)\text{ }\!\!\pi\!\!\text{ },n\text{ }\!\!\pi\!\!\text{ })$,下凸区间为$(n\text{ }\!\!\pi\!\!\text{ },(n+1)\text{ }\!\!\pi\!\!\text{ })$

A. Connect each pair of sentences with and, or, but, or so. Add a comma as needed.1. Anna forgot her cell phone at home. She didn't receive my text message.

There are _____ texts. They are Text A _________________, Text B _________________, Text C _________________, Text D _________________.